Right, I know from experience what its like moving to Plymouth from a bigger City. Ok not London, but Bristol. If your an outdoor type, its fine. Some nice beaches and scenery surrounding it. Unfortunately, there is very little to do in Plymouth itself. Its a typical small city, and the centre is full of local independent stores, then a single shopping mall which is pretty poor tbh. On the plus side, its a safe place to live. Apart from petty crime and a HUGE amount of chavs, theres never really much trouble. I still own a house that I rent out in Derriford, and the wife is from there so go down quite often often to visit her family. As mentioned, Plymstock or Plympton are nice places to live. Close by and quick and easy bus routes to the City Centre, but tbh no matter where you live, you'll never be more than 30 minutes away even in rush hour. Exeter is only about 45 minutes away which has better shopping if thats what you're after anyway. Getting out of Plymouth is easy via the A38 provided there hasn't been a major accident anyway.