By the time they got to a third movie, all the gags have been used and reused to the point where it's all predictable. Some nostalgia from the first two movies is probably what made this likable. Not much originality in this installment, and honestly speaking it was relatively empty.

The cinematography was good, the SFX wasn't great. The acting was as good as can be for these kind of characters.
I guess all good movies kind of trail off when it reaches a third installment. Nonetheless it was a decent slightly amusing watch.