Which school for integrated ATPL?
Having recently paid for my son to complete the APPFO integerated course at OAA I would suggest that you look long and hard at the schools that you are already planning to look at plus include a few others like CTC. Also ask questions about ratios of students to intructors & equipment, pass rates, accomodation and safety track records.
My son's experience at OAA was OK but as someone paying for it I didn,t think the overall experience over the 15 months or so representd excellent value for money. Groundschool was hard work but very good, flying in Arizona was not so good with some instructors appearing to have lost their enthusiasm for their job and their students and 20 weeks in over 100F temperatures rising to 130F in July/Aug was very uncomfortable at times and caused many frustrating problems with the aircraft. IR training back in the UK was good but a shortage of equipment and instructors meant many frustrating delays sitting around in expensive accomodation. Finally MCC/JOC training was very good on the 737 sims. Whilst my son would probably do it again I would recommend the modular route with groundschool and final sim training at OAA with the ME CPL and IR completed elsewhere thus saving money and probably getting a better deal and having a better time. Whatever you do and whoever you choose, good luck.