I'm currently Studying with CATS DL, I've done the first two stages and looking to take my last stage in next month or so.
I cant say i know about Bristol but i was looking at them when choosing a school.
They seemed organised but i chose CATS because of the 3 stage method. I just felt splitting the exams would give me more flexibility and with all my exams to date passed i must say its working.
The Internet site CATS provide for the training is very good, it ties in with the study guides and is clear and in depth with detail.
Speaking to some students when i have come in to do the ground schools, the In house is good, cant say ive spoke to anyone with any complaints.
I would strongly advise to visit each school and make up your own mind.
The talk on here is all valid but i wouldnt ever do anything because people tell me its good until ive checked out all options myself.
cheers
PlaneEasy7