PADI is recognized all over the world, but as many other things in life the quality of training is not really about the certifing agency but the instructor, now a days almost anybody can be an instructor if you pay enough, but obviously that dosnt make you a good instructor, so dont be afraid to ask a lot of questions about everything, a good instructor will be happy to answer, and no matter what the instructor say, always use your good judgement, that is the first thing you should learn as a diver...