An incoherent mess.
It's clearly aimed at the kid audience so I won't hate on this too much, but even so it's a pretty sluggish watch. Alex D. Linz (Max) is alright, while a pre-'Drake & Josh' Josh Peck (Robe) appears, but everything else is lame.
The concept is decent, though the execution is anything but. There's also an iffy love story in there, while the attempted message is a little blurred by the end. It feels like they created a funny short story and turned it into a feature length, without much thought.
If you liked this, fair enough. For me, however, 'Max Keeble's Big Move' is awful.