For more recent answers, I can tell you about my dc if you like ?
I graduated 18months ago and 1 is currently at university (in her 2nd year)
How many people did you have to live with? - in 1st yr, in halls, ds was one of 7 in his flat, dd was one of 8 in hers
Were you close with the people you lived with? ds was - became good friends with 4 of them. Got on fine with another. The other was a bit odd and never mixed, even when they cooked a Christmas dinner together for the flat and a few other things for the whole flat. dd got on with all her, but they weren't the friends she became closest to, and chose to share with the next year.
Does everyone get their own room? At the majority of places, but some Universities still have shared rooms - I know someone who went to St Andrews who shared.
What was the state of the place you had to live in and was it a house/flat? Halls (where most live in first year) tend to be flats in blocks just for students. From 2nd year, the majority of students then share a house - usually one of the living rooms converted into a bedroom. IME (having looked round several Universities for both of them, and also visited dns in other places) the Halls have got nicer and nicer over the years. Some really quite plush ones now with a price to match. Quite difficult to find grotty ones. The shared houses vary more, but, again, overall, seem FAR better than when I, and my peers were at University over 30 yrs ago.
And also, how many lessons do you have a day on average? Did everyone work part time too? This depends massively on the subject. Humanities don't tend to have more than 8 - 10 contact hours across a week. Scientists tend to have considerably more.
Yes, IME, the majority get jobs to earn some money. Some only in holidays, but more in term time too. Far better now with zero hours and more flexible contracts, so can work round other things you do.