I know a couple of people from Solent...so agree with starshine and Jessica...
because the halls / campus is right smack in the middle of town, you've basically got full access to what Southampton has to offer...
Personally, I think this is pretty good (and this is coming from someone who use to live and work in London)...
I've just heard today that there are more pubs/bars per capita in Southampton than anywhere else in the UK...
Plus there is an abundance of good restaurants, including Chinese, Indian, French, Thai, Japanese, Italian (to name but a few)...
Lots of clubs (that open late most nights during term time), two cinemas, two theatres, Leisureworld, Ocean village, bowling...as well as the New Forest on your doorstep...
The prices are usually reasonable (and positively cheap compared to London!)...there seems to be an abundance of offers (provided you pick the right night) that makes most places affordable for students...and I'm including places like Pitcher and Piano (which is right on the marina) and Dockgate 4 (which has a happy hour, as well as piano/jazz), as well as Ocean & Collins, and the Frog and Frigate...
and there is no shortage of live music e.g. in the Hobbit, Hamptons...or the Guildhall and Rosebowl for the "big" bands...
(and this is not even counting what the Students Unions have to offer!...)
Anyway, hope this helps a bit...