I am also going to Chandler in a couple of weeks (Thats if my letter turns up from the FAA in time).
I did quite a bit of research and they get many good reviews. My initial dealing with them are also very positive compared to alot of others.
There is an alternative if you want to go to spain. Avioservice have some aircraft based down at Barcelona for the winter. Technam for 105 Euros. PM me if you want the contact info.