This was a lot of fun to read. And while one definitely shouldn't consider these show canon, they are nice collection of bonus adventures.
The dialogue felt organic to the characters, and fully captured the show's wit and charm.
The artwork, for me, was kind of hit or miss. In some of the stories, the artwork was so...out of proportion, I guess, that none of the characters looked exactly right.
All-in-all, I'd definitely recommend this to fans of the show.