Texas is indeed hot as hell. It sucks because you can't do anything fun outdoors. You are pretty much limited to any place that has air conditioning.
I haven't had a problem with many people here in Texas, although Texas does have its share of assholes. I guess living here makes you immune or something.
There are some nice places in Texas, such as Austin, like 6669 said. San Antonio is OK, too, when the weather is nice.
I really didn't like it in Houston, though. I go there once in a while on vacation to catch a ballgame, but it's hot and the drivers are horrible there. Plus, the new ballpark there sucks (what was wrong with the Astrodome?!).
Texas does have some terrible drivers, though. I'm sure that most can agree on that. Corpus Christi especially has crappy drivers. That is the main complaint around here. That, and that there isn't much for anyone around here.