No I have some experience with a DHT22, - http://arduino.cc/playground/Main/DHTLib - Although it is a bit slow I like it quite well.
and more recently I helped to develop a library for cozir, - Arduino Forum - This sensor is on my wishlist but I cannot justify it (yet 
For temperature only my favorite is the ds18B20 - MilesBurton.com - you can have multiple of them on a bus system extending the number of sensors one arduino can handle!