It is not whose banner it is done under (i.e. which flying school) which is important. It is the details that matter.
FI(H) training is or should be very intense. IMO, It is a period with one of the steepest learning curves of any in hele flying.
The person or persons doing your instruction are key. You need to spend some time finding out about that person and how he/she fits with your character.
I would strongly recommend that you try and do your course with another student. It helps in all sorts of ways.