Between planes do not stop to rest between gates A and B between flights. US Airways closed the gate in my face 9 minutes before takeoff. If you are reading this you probably missed your connection.
If you're using the light rail system - skip the rental car shacks, you get double taxed by the airport. ZipCar all around ASU - and no need if you're hitting downtown Tempe.
A hub and major connection point for US Airways and Southwest Airlines, if flying any other airline then you will likely face less delays and cancellations due to not being their hub
Many have complained about lack of outlets to recharge your phone/laptop, but I found no waiting for barstool/counter space at Southwest plug-in stations near gates D1-8, with great view of runways.
The tsa security check points are pretty unorganized You get in line to put your stuff in the bins, then you have to wait with it to push it through, then you get back in line to be screened. Stupid.