Hot, barren, boring... my grandparents retired to Arizona and lived there for about 20 years until my grandfather died. Been there a couple times and despite being happy to see them... it was absolutely miserable. It's just too hot, and the state likes to "see ze papers"
HS
I heard their winters are awesome though. My family are actually looking for a newer home down there, either Prescott Valley or Queen Creek/Gilbert area, they will be retiring in 2014.
I know Arizona is a gigantic state, so there's a lot of diversity in the geography. I can tell you that the expanse from the Grand Canyon, to Phoenix, to Yuma... a gigantic area.. is a barren inferno. I'm sure the winters are nice, though. Just can't get over the summers, though.