The answers to these questions are going to vary heavily dependent on the uni, I've seen syllabuses that vary from pure mechanical degrees to electromechanical to a general degree, then with the more general degrees you have the ones which are just standard engineering degree intensity all the way up to trying to shove a degree and a half worth of content into your 480 credits. They usually also only have a peppering of Aerospace rather than being majoritively aero, this will probably be to your benefit.
Mine was the the more general engineering type degree but with the option of specialities so I specialised in Systems engineering (sort of like electrical engineering), however due to accreditation requirements I come out with a degree accredited as a mechanical engineering degree because they shove ~80% of the normal mech eng degree into 60 credits each year, then on top of that we do ~90% of the Systems degree in ~40 credits each year. They shove it in by playing catch up for the previous year while you're still doing more general sets of modules. So it gets pretty intense, the first year is 35-50 hour weeks including assignments so they're fairly constant although it's also plausible to halve that by know which lectures are important to attend. In second year it varied from 15 hour weeks all the way up to 80 around exam time, I cannot think of a single person who clocked in less than 60 hours during any week in the last 5 weeks of that year. The course is also designed so that first year is more of an aptitude test and then second year is a better test of your ability which means you end up with people failing in second year nearly as often as people fail in first. That said most people are on mid-high 2:1s and then there are a handful of firsts, again by design.
I'd say it's very enjoyable, you get to do a lot of practical stuff in not just aero but other disciplines too which means you don't get bored as easily. This also means you get to meet loads of people as you're constantly in lectures with people not in aerospace, but equally because of the intensity there's a very strong comradery between aerospace engineers. The content is also quite interesting more often than lot and there's a decent proportion of excellent lecturers that will inspire you.
I wish I'd known to get more involved in the practical aspects such as formula student, IMechE competitions, circuit building and programming. I also wish I'd known more and been more willing to participate in things that the university in general offers.
I knew about orbital mechanics from playing KSP and watching Scott Manley's videos, and a little bit about drone design, but not really anything else aerospace related.