The Good: The overall mystery was cute and fun, and the brothers used their usual detective skills to figure it out. It was a little bit tamer than usual for this franchise--not as much action or peril--but, I still enjoyed it. The illustrations were good, too...
The Bad: but, there were too many of them, which was a bit annoying. Also, the "exclusive" comic strip showed Frank and Joe not acting very intelligently, which is...well, not them.
Conclusion: It had its moments, but, overall, I prefer the original series or Undercover Brothers to this. Younger readers may enjoy it, though.