These are some fantastic questions, absolutely don't apologise!! I'll answer as many as I can!
1. Yep, it's a wet room! It's slightly raised from the rest of the room (at least mine was, there was a slight step). It's shaped a bit like a reverse L -- with mine, the sink and toilet were immediately there on entering, then there was a curtained off area (enough to fit two people if you squish together, so there's a tiny bit of room -- regular small cubicle size) where the shower and drain were. It's not the biggest en suite I've seen at uni, but it absolutely did the job, and the shower was nice pressure-wise too.
2. RHUL is pretty diverse! We have a lot of international students from a lot of different countries, for one, and if you're living in halls you'll probably immediately build a friendship group with people of various nationalities, ethnicities, and interests with the people in your halls. There are also nationality/ethnicity/culture-specific societies that are great ways to meet others from similar cultural backgrounds or share with others, like the ACS (African-Caribbean Society). I honestly wasn't too involved in a lot of different societies and sports clubs (I was pretty much just in Gamesoc, the Games Society, so I could play D&D! I am a loser) so I don't know 1000% about their makeup. I'd say while it isn't as diverse as some unis in big cities (at least in part because we're a smaller uni, with just over 10,000 students) it's absolutely not something you have to worry about.
3. Most of the rooms have either been built or refurbished within the last 10-15 years. The newest halls are George Eliot, which were opened in 2017; before that it's 2012's Tuke, Butler, and Williamson; before that was Gowar and Wedderburn in 2008, if I remember right; these make up I'd say at least half the beds available on campus. Founders is a little dated in comparison, but honestly --- having now lived in Founders for a year --- I didn't struggle at all with what was there. I'd say all the rooms are well-stocked, and all of them have access to the exact same facilities. The uni has computers in the computer labs and in the main library; there are laptops for loan (they're Lenovo Thinkpads, iirc) and hundreds of desktops that I believe all run Windows 10. I'm not sure about anything more specific/specialised, though!
4. We have to pay a yearly membership to the Students Union (£30 for 3 years, I think) to be able to join societies and then a small yearly fee for specific societies on top of that. Most of these are £5-£7. It's not ideal for a student budget, but all the money goes towards the society itself so it can afford to run events and socials -- and tbh most societies will let you come and attend weekly meetings without being a member/paying anyway.
5. I haven't done a placement year myself, but I took part in the microplacements scheme in my second year (small internships of 2-4 weeks sourced by the university) and that went really well, if that's any help!
6. The weather's not too bad! Especially at the beginning of term in September and in the summer term (May-June), you can get some lovely sunny and warm days. In my first year we had a mini heatwave, and I walked to Imagine (bubble tea cafe) in my swimming costume. The SU sells ice lollies and ice cream cones, so you can have a nice warm afternoon! But to be fair, I've lived in England my whole life and I have warped expectations of the weather! It rains quite a bit, but not as much as the stereotype would have you think. It's not rained here in about two weeks, it's been about 13 degrees Celsius, and we've been pottering about in the garden.
If you're used to a warmer climate, it might be a bit of a shock -- but campus is beautiful enough that even in the rain it's worth it, tbh.
7. I don't really know how true that is! I'd say if anything we have quite a lot of 'togetherness'; campus is small and quiet, and I can't walk anywhere without seeing at least one person I know and starting a conversation. I'd say that you're going to get out of this stuff what you put in; if you're part of a big and friendly society, like Humans vs Zombies, you're going to meet a lot of people and have a real sense of togetherness! If you're a grumpy recluse like me, you might not meet so many people, but I wouldn't say there are a lot of
rude people -- no more than anywhere else, tbh. As for poshness -- me and my friends are all from shoddy schools up and down the country who smashed our A-levels against expectations, but I have met some out-of-touch ponces from private schools. It's not as much of an "insurance for a missed oxbridge offer" uni as somewhere like Durham or St. Andrews have reputations for being, but there are still a couple of them -- mostly students who live somewhere in Surrey or London who commute, or who liked the pretty buildings haha
8. I had a great experience with my personal tutor! I had meetings with her every other week in my first year, and she taught me a lot about referencing, degree-level close analysis, and how to survive at university. She also let me come into her office in a tizzy more than once and gave me a biscuit. Unfortunately she moved jobs at the end of my first year (though I've just looked her up and she's lecturing at Oxford, so good on her!!!), so I was reallocated to another tutor for the rest of my time at RHUL. He ended up being my dissertation supervisor, so I'd say I got pretty lucky there! Most second- and third-years don't have regular meetings with their tutors, but I know it varies between departments and degrees -- and you can
always email your tutor and set up a meeting if you want or need one. Most people showed up to seminars regularly -- I was never alone in a class, at least! It's really about what you put in, again -- seminar leaders will see you if you show up every time, and will realise if you're flagging behind by not attending.
9. I didn't use CeDAS, but my roommate this year did! They were looking for help with structuring and formatting an essay; they booked a 1:1 meeting rather than going to the drop-in so the work could be read in advance, and they said it was really helpful. I'm so sorry for not being more help on that one!
10. I was catered this year, so I'm well-acquainted with campus food! Catered food is mostly pretty good, but there are some hit-or-miss days; I've never had a day where I couldn't eat
anything, but obviously cooking in big batches for hundreds of people means that portions can sometimes be on the small side/need to be supplemented with other available stuff. For Founders, I recommend the chicken/veggie fajitas, the pork belly in hoisin sauce, and both them and the hub are
really good at pizza. As for other food, you can get some delicious burgers and hot dogs from Tommy's Kitchen for about £5 (I absolutely recommend the hot dog with sweet potato fries -- though they do sometimes overcook the sweet potato fries a bit, I like the crunch), and they have a hummus and pita bar there too, that I haven't tried. The Boilerhouse does artisan baguettes and sweet treats, like muffins and brownies -- these are really good, and they do a lot of veggie and vegan stuff. Kimiko is a Japanese-inspired food bar in The Hub, down at the bottom of campus, that does fantastic katsu curry. And on Tuesdays there's streetfood on campus during the day from various international cuisines, which is really nice and always delicious!
I wish I could help you out more with Econ and IR, but I don't know all that much about either of the courses/departments.
(I am an English student who can't count lmao). Good luck with looking around and making choices! I know this is daunting, especially with everything else going on. Genuinely, the best stuff I found when I was looking around at RHUL was on here from current students and the few Youtube campus tours there are. <3