I'm in Cannon Park, it's a pretty nice area, no robberies and very decent houses. I don't go out, so there's no point living in Leam and stomaching the commute.
The rest of Canley is pure shite though, everyone gets robbed. As previously mentioned, Coventry is genuinely a dump. Campus is ok, and nice compared to Cov, depending on what you like to do, and while you're on it you don't really need to leave.
CS itself is decent, the course is good, but also full of ****. Like most top unis, it just relies on smart students doing well, rather than the actual teaching quality. Recruiters do seem to love CS students from Warwick, and banks can't seem to get enough either (they sponsor a couple of our modules with prizes).
There is no lecture capture for most modules, but they upload slides, and if you cram in the slides, there's a good chance of getting a 1st.