I've used AFT at Exeter and PAT at Bournemouth. AFT were excellent, buildings weren't great (like PAT) but I thought the training was good. It was pretty much a crossing point for military pilots converting to civilian and for the UK BCPL pilots doing there shortened IR and there used to be a 1,000 minimum hour requirement for the IR, but I believe that's all changed since 2002. Definitely worth a call, I couldn't recommend them enough.
PAT were good too. They're a bit less organised on the admin side and I noticed some pilots were hanging around without an aircraft or instructor (but it was a bad winter and I think the school had a bit of a log jam at the time). Anyway, I had no such worries and also felt the training to be good.