The film is good, not great. My quick post-screening Twitter thoughts:
Fun, cute, breezy, and a perfectly pleasant way to spend an evening in the theater. Anything beyond that? No. It's one of those movies you enjoy the hell out of while watching but don't think much about after. In that way, it's very flavor of the month animation. That said? Illumination has really nailed down their physical comedy sensibility. They're essentially the new Looney Tunes.
I'm a little disappointed with the script... I expected there to be much more of an emotional core and exploration of the dynamics between pets and owners, but it's all kind of left on the table for a meandering caper where not a lot really happens. Dug and Max feel chronically underdeveloped... in fact, Gidget (the female dog), Snowball, and Tiberius are far more interesting and entertaining to watch.
I would love a ride with these critters, though, ideally one that isn't a "and then things go horribly wrong!" plot. Of course, I'm sure we'll just end up chasing a gerbil around New York City (and into the sewers) in a madcap chase, or something.