Coventry isn't too bad but has some rough bits, most places people live in when at warwick uni are Kennilworth which is a nice small town, Earlsdon which is a subburb of Coventry now, one of the nicer ones!
I lived in Earlsdon for 4 years myself and quite liked it, it's only a 10 min cycle from earlsdon to campus, but best to find the signed cycle route to avoid the A45 dual carriageway (40 limit but coventry drivers can occasionally think they're in a Fast and Furious film)
There is a bus link from campus to Leamington, regular service buses to and from Earlsdon and Cov centre.
They had stopped allowing students from parking on campus but this was a few years ago now.
The sports centre at Warwick has a swimming pool and climbing wall if she's into either of those activities
