To get to central London from Roehampton, you're looking at either a bus and a tube, or a couple of buses, or a bus and a train - it's not *that* bad, but it's definitely a journey. Living around Roehampton isn't too bad, but it IS expensive. Most students who live off campus either live in Roehampton itself (there are lots of ex-council flats to rent) or they go a bit further out, to Putney, Richmond or Kingston. Living in Roehampton is by far the cheapest option - that but of SW London is actually a really nice area and this is reflected in rental prices. It's also a big commuter area so rents reflect that too. However, it is a nice area - Roehampton really isn't that bad at all. I live in SE London now, and I'm really missing the Roehampton/Richmond/Kingston area. It's a fairly mellow area and a nice place to live, it's far enough out of London to be a bit more relaxed, but close enough for the shops/culture of London to be easily reachable. Roehampton is also right on the edge of Richmond Park - there really isn't anywhere in London where you'll have quite so much access to 'green' lol. I come from the country so I was a bit anxious about moving to 'London', but as I said Roehampton is far enough out for it not to feel oppressively urban. I like living in London. Some parts of it (like anywhere) are horrible, but I still get a real thrill when I go past some of the major tourist attractions and landmarks. I think it's a great city to experience for a while - there really aren't many cities that are so diverse.
Roehampton does have a good atmosphere. In terms of universities, it's an incredibly diverse place. There's a great mixture of ages, races, abilities, interests and it is a place where almost everyone can find a niche. It won't suit everyone though ... and it's very much a place where you do have to make an effort to get involved. It's a good university if you're a slightly 'older' student and you're used to doing your own thing, and it is possible to have good relationships with your tutors. I really would suggest a visit, if it's at all possible, as for a lot of people it's a real 'love it or hate it place'.