Scrogg's point is extremely valid, however it may be worth doing a search on here or looking hard first as with the IR.
I know one school who's instruction is excellent, but only when they had 2 BA pilots doing it for them when 1 was rostered off, and the other retired recently, there own MCC Chief Instructor as he liked to remind people of had terrible communication, people and training skills. Frequently has people not wanting to fly with him too.
He is well past retirement and as already put a crusty old Captain, whos idea of communication is still barking orders.
So I would say look hard, choose wisely and as always cheap is not always best and vice versa
Again already put its about good co-operation / communication and interaction in the cockpit, even if you dont like the guy, Jet Op's is different, perhaps if money allows do it but at a later date if you get offered interview dates
Good luck
