Well, bloody hell, the personal abuse proves they don't like the truth, or anyone who tells it.
The trial lesson debate is futile, no-one said don't do it but just beware of the snare and similar sneaky tricks as they have, helpfully, outlined above.
The (around) £3000 JAA-PPL courses are a fact (just look at past and recent Pilot magazines) and it is obvious, if not well-kinown, that several schools have been providing them for years, at the same airfields and, apparently, under the same ownership.
The rip-off conclusion is simple arithmetic, only based on suggestions, NOT from me, of £95 per hour, just for a lesson, and that you should 'budget' £6000, for a course, (=double what you could or should pay).