I liked his first album, too, but I have to admit it has been a while since I last heard it. The second one was pretty flat, though, so I lost interest.
For anyone curious about what jokes he stole, but not so curious that you would look for them yourself, here's a ytmnd that someone made using an MP3 that compared his version of the jokes with Louis CK's:
http://danecookisahack.ytmnd.com/
Also, I saw his SNL monologue the other day and realized that he stole his joke about getting the wrong shoe size from Todd Lynn.