My friends live at Dover Street and it's honestly great value for money imo. It's one of the cheaper accommodations and I know a lot of people complain about it because the toilets are shower rooms (so everything gets wet apparently lol) but it's acc quite nice. You get your own toilet, a nice kitchen, there are revision pods/huts that you can book out, maintenance and cleaners coming in semi-regulary, good security (which is annoying when you want to host pres but can only sign in one outsider per person living at GDS but still) and the rooms are nice (they do vary in size tho so you might get a small room or a large room). It's also really close to Guy's campus.
I've also been to Wolfson a couple of times- it's the cheapest accommodation. This one's right next to Guy's campus and next to the shard. You have to share bathrooms, but rooms have sinks in them (at least my friend's room did). The desks are smaller, but the rooms are an ok size. The kitchen is quite small though.
Another friend of mine lives at Julian Markham, the kitchen was sooo nice. The room was small but not uncomfortably so.
I live at Moonraker Point (it was the only non-intercollegiate accommodation that was available whenever I checked the accommodation portal lol). It's one of the most expensive accommodations and it is not worth the money lmao. Don't get me wrong- the rooms are good sizes (they vary- mine is on the bigger end), we have 3/4 beds, our own bathrooms with the shower in a cubicle (not like the GDS shower rooms), there's a lot of storage space, the kitchen is good- there's even a balcony, and it's 15 min walk from Waterloo one way and Guy's the other way. However, it's not that much better than GDS even though it's over £100 pounds more expensive a week. Like, £335 a week is ridiculous. Also, during winter, there was no hot water for a few days and a whole block had to be moved to a hotel for a week because there was a power outage. So overall, I like it and it's a good accommodation, just the price is horrible lol. Literally the only thing that MP has better than GDS is the bathrooms and storage space lmao. (At least from my experience).
Anyway yeah if you have any Qs feel free to ask away