[Stephan Whelan]

Every agency has their own pros and cons. Apnea Academy/AIDA/PFI/FIT are all respected training agencies in their own right and there are differences between them all. There are very few people who have attended multiple courses across multiple agencies so there it is very difficult for people to truly be able to tell you which course is better than any other.

My suggestion is to find a good course near you first to learn the basics and then if you progress further you can start experimenting with difference agencies.