Surpisingly not that bad.
I'd read bad things and when I heard Smash Mouth in the opening minute, I thought "oh no, that's not a good sign." but it's really not that bad.
I actually laughed out loud at two of Tim Allen's lines which I would not have expected.
Rip Torn is awful but that's the only truly really bad thing I could think of.
I mean, it's a kids movies. And it was pretty entertaining, never boring, and occasionally interesting.
That's more than movies like SuperBabies can claim.