There's a pub, a bar, and a club on campus, with another pub about 30 seconds walk from the edge of campus, and easy bus links to more pubs/clubs out in Leamington and Coventry. I mostly just go to the club on campus, but if you do want more there are always buses back home at the end of a night. It costs about £4-£4.50 for a day pass for the bus to either place, though most people who live out there will have a bus pass instead.
Everyone I've met here has been lovely and friendly, and there's a real community feel if you actively get involved with stuff (particularly within sports clubs and certain societies). There are also a lot of nice green spaces to walk in and around campus, which makes it a really pleasant place to live. The user who mentioned the business park vibe is definitely correct for central campus, which is what you mostly see on open days, but when you actually live here you realise that's not all there is.
There's a full list of sports clubs here:
https://www.warwicksu.com/societies-sports/sports-clubs/. There are also several more exercise based societies (see here:
https://www.warwicksu.com/societies-sports/societies/) such as pole and aerial arts and quite a few different dance clubs. The gym on campus is big, with lots of different courts and pitches around the centre and campus (squash courts, badminton, tennis, basketball, athletics, climbing, rugby, table tennis etc.). They run a lot of different classes (see
https://warwick.ac.uk/services/sport/fitness-classes/fitness-classes-timetable.pdf for an example), and have a pool and rowing and cycling studios if that's your thing.
There are also more casual sports options, with the Rock Up and Play scheme (see
https://warwick.ac.uk/services/sport/active/rock-up-and-play) and many societies having their own sports teams which compete against each other in campus leagues (
https://warwick.ac.uk/services/sport/active/leagues).