I did a PPL with them a couple of years ago and the main issue I had with the place was that they just seemed generally disinterested in you. You would stand at the desk waiting for some attention while the 3 people on duty variously surfed the internet, went about paperwork or engaged in a long discussion with someone about car tax or something equally irrelevant. Call me old fashioned but if a customer is waiting to be served, you stop whatever it
is you are doing and attend to them first. One chap particularly has to have been the most miserable looking fella I have ever set eyes on, never smiled, never seemed enthusiastic or happy to be at work. I got depressed just being around him!
This generally added to the feeling that I wasn't really part of a flying club (and I know its an FTO and not your average grass strip affair) but the atmosphere was just a bit lacking - a bit more of a friendly approach would have been good. I got the impression they were only really after the cash.
Maybe all this will have changed by now and I suppose the best idea is just to pop in and have a chat to them.
On the positive side, I can't fault the instruction one bit. I have a CPL/IR from another establishment now and I can honestly say that my PPL instructor at MF was one of the best (if not THE best) instructor I have ever flown with, and I've flown with quite a few.
Haven't had any experience with LFS so can't comment on them. However, I do believe that they no longer offer PPL training? Good luck with your training whatever you decide!