Red Wings
I am afraid that EPTA specifically (as opposed to Cabair generally) is such a small, new organisation that it is unlikely anyone here knows anything about it unless they have an interest one way or the other. I for example know something, because I work for a competitor, but this of course means I could not be objective. Anything negative I said could be construed as commercially-minded and would be against the spirit of PPRuNe, so anything positive I said would be of no value without balance (like all organisation, EPTA has positive and negative points). I also know almost nothing about the groundschool, as they have not yet started.
I know EPTA monitor PPRuNe, but don't think any of them post, so you will not get anything directly from them.
On the other hand Bournemouth is genuinely a great place for flying training, so it can't all be bad
Weather is good, full facilities and a CAAFEU, international jets but not too many.
Best of luck, and pop in for a coffee any time you like!