I went to Phoenix East in 2002-2003. I did my multi-engine rating, my CFI, and CFII there. I also flight instructed there for a little while.

I truly enjoyed Phoenix East. They are a very decent flight school. The aircraft were not new, but they were safe and operated well.
The instructors and staff were very friendly and helpful. I was never overcharged for my flights or anything like that.

Perhaps the only thing I did not like about them was that sometimes they were so busy it was difficult to schedule an airplane. This was really only a problem when I had to use the complex airplanes for CFI training, since they only had 3 when I was there. Other than that, they had a fairly large fleet. That was 4 years ago though, so it may have changed some.