I'm on 1 of the APP courses currently, and all I can say from my point of view it was the best decision I have made. Ground School quality is excellent (not quite the same as OATs Modular as we do a LOT more hours), can't comment on the flying as I have not started it yet.
Everyone has a different personal circumstance, it really annoys me the number of people on these forums who slate Oxford and other schools without having actually attended the course at the school. I am not going to even try and say that OATS is better than all the rest, I am not in the position to judge that. I looked at other schools, decided the APP was best for me in my circumstances and I have not regretted that decision.
Sure there have been a few little niggles as any company will have (why do the OATs ones only seem to get picked on in these forums though???). But to counter that there have been more positive surprises than niggles, and a general feeling that OATs management are doing a lot behind the scenes to make the APP work.
In short, if you feel an Integrated course is for you, and the APP appeals to you then go for it, you won't regret it unless flying is not your calling. If you are not convinced, then don't spend your money on it - would you buy a house that you didn't have a positive feeling about???
Finally, for all those people doing modular routes, just accept your chosen training path - you chose that for a reason that was relating to your personal circumstances, so don't slate something you don't know the full details about - to do so just makes you look Jealous and a bit pathetic, so just try and be constructive and help people and not be a whinger who complicates peoples decisions to spend a stupid amount of money.
Big Air
PS. For those people thinking that doing all your Modular training elsewhere and just your IR at Oxford will get them to recomend you to BA or anyone else, then you are kidding youurself - there is a big queue of APP guys that will get any recomendation first, followed by the guys who have done all their modular training at OATS, and then maybe you. Simple economics really, you try and sell the new sportscar before the lemon with an unknown history parked in the alley round the back.