AJ1990 - Now I believe this thread has mostly been about CPL/IR training, and that is a complete other kettle of fish. You should not compare PPL vs this. The school that offer you PPL lessons for less, might be good, don't get me wrong. However the reputation of Stapelford for CPL and IR, is pretty good.
Yes money talks, but I have also heard of schools that are happy to teach for less, but the procedures they teach you are not suitable for the further CPL/IR training, if that is your plan.
You might save a little now, then you go on for your CPL/IR and you need to relearn procedures etc. That is why it is a small advantage to train with one school.
I do think PPL at Stapelford probably has "lower" priority than CPL/IR - but than again you do get a few "hopeless PPL" students too.
It is all about what the student puts in, they will gladly let you spend your money if you are not bothered yourself to put time and effort in your own training.