Didn't like it all all. Too cutsey and kid geared for me. Theme song is annoyingly catchy though.
Did you watch it in English or Japanese with subtitles? The latter is better.
EDIT: In fact, I can't stand to watch the English version now because everyone's voice seems wrong. The Japanese voices fit perfectly, and the subtitles are funnier than what they really say in English. In other words, you'll never hear about why a hot dog is called a "wiener" in the English version. :D
EDIT
2: The theme song is way too catchy. It is now on my Zune. D: