I've been here for about 7 months and the longer I stay the more I like it.
It takes a while to get used to the differences.. attitudes are very different here, the traffic is ... insane.. and yeah, it's pretty hot and humid most of the time. And, it's always noisy if you live in the city - new construction everywhere, horns honking, car alarms going off all day long - it's crazy
Be prepared to be frustrated a lot. People move slowly here, and you can't get mad and try to rush them - they'll think you are a mad man
But, once you accept the differences, life here can be very good.
Is it fun? Hellz yeah it's fun!