I really liked it, and was dissappointed that the humor and action went over the head of my 1st grader (but not that I was surprised). I hope he gets into it more in a few years.
Do I think it's Newbery worthy? I don't know. I applaud that it's a short book that would appeal to both boys and girls. But while I really enjoyed the humor, I know that people's taste in comedy vary wilding. The humor alternates between dry and goofball slapstick.