I wouldn't go so far as to not recommend this movie, since the only problems I have with it are due to an overexposure to the plot devices used in the movie - the sort of things common to every kids movie ever made it seems. That doesn't make it bad, just not something I'd go far.
It is a little saccharine, so I might say that for the most part anyone looking for something with a little more wit could be disappointed in an obviously for-kids movie like this.
However, all of that goes out the window when that squirrel (the one in all the trailers) comes on-screen. His time is limited, but it seems apparent that the decision makers had the wisdom to tell these guys 'hey, could you stick in a little more squirrel?' every time it's getting intolerably dull. That doesn't save the movie, but you can leave saying 'at least there was one aspect where I couldn't stop laughing.'
And of course, visually it won't disappoint, but that's almost a given with Pixar flicks. Of all of their stuff, I'd put this at the bottom...but that isn't in itself bad.