I love Surrey. Guildford is really nice. It's clean, safe, near the country, near London, got good shops, restaurants, not a huge number of clubs & bars but enough & you can get to other areas easily, but it's EXPENSIVE.
If you want more of a party lifestyle I'd look elsewhere like Liverpool, Manchester etc. But if you want a nice, good, quiet, easy life in a lovely area, then Guildford it is.