If you're looking for flight training in Arizona, go with Sierra Charlie Aviation. They are hands down the best flight school in Scottsdale and I cannot say enough good things about them. I actually started my private pilot training at a different "school" at the Scottsdale airport and really wish I had come across Sierra Charlie first.
Their instructors are professional, not burned out, and actually make lessons fun. They all have thousands of hours in experience instructing and also other flying careers. They're not just building flight time to get to the airlines, they chose to instruct because they enjoy it.
Also, unlike other places, their planes are brand new and have the Garmin G1000 cockpit - so much better than the conventional steam gauge planes. After my private pilot training I got my Instrument Rating with them. They were really flexible and able to work around my crazy schedule which was awesome. So if you're looking for flight lessons or a flight school in Phoenix or Scottsdale, I highly recommend Sierra Charlie Aviation. I promise you'll be as impressed as I was.