There's not much I could objectively add, but my opinion on ADP is the following:
Accomodation (the "Residence") - yep, it's a dormitory. You share a room with somebody you might not like but I'm sure in that case you can sort things out. Furniture is minimal, very limited privacy . It's relatively cheap, but if you're going there with a friend (for not too long, I'll definitely recommend you to spend a few extra bucks and go to the Shilo Inn (free shuttle, breakfast included, 10-15 min drive). If somebody in your "party" is a girl, go to the Shilo.
Instructors - This is where you'd better be lucky. There are excellent, good, and... huh, let's say... average instructors. Here again, not enough people to do the job. All the instructors have something in common: they're flying there because they need hours, and if they have an opportunity somewhere else they'll run away at VERY short notice and you might find yourself stuck on the tarmac because all the other instructors are already fully booked.
Airplanes - I didn't always feel comfortable with a few technical problems and I grounded planes a couple of times. The planes fly a lot, and it shows. In addition to that, I'm not absolutely sure they have enough mechanics to maintain the entire fleet in top condition. When the FAA makes a spot check, the walls sometimes shake !
Girls - (sigh)
CONCLUSION: It's fine if you just want to build up hours (dry lease a plane), not if you have a tight schedule to complete a licence. The problem with ADP is that they want to have a maximum of customers but don't have enough workforce to handle the crowds they generate.