The in-between movies didn't really do anything for any American Pie fan (talking about everything that was tagged with the American Pie title after the American Wedding aka Part 3), but this one will satisfy the fans of the original. Even though (or because) they have grown up, many will remember them. While I think it works for newer viewers (without previous knowledge of the original trilogy), I think the full viewing potential/pleasure will only emerge if you have seen the others too.
While I was a bit skeptical about the fact that Stifler (played exceptionally again by Sean William Scott), went "back" attitude wise in this one, it made more than sense and doesn't take anything away from his arc in Part 3. I would even say, his journey is fulfilled now for sure! The others have their problems too (even if some seem small in comparison to others) and they play it as straight as the first time. Many familiar faces will show up, even the ones who didn't have an actual character name in part 1. A nice touch.
The movie may be (largely) predictable, but apart from some major surprise towards the end, it is done with love by everyone involved and you can feel that through the screen. A really fitting end (?) to a series, that defined a generation of movie-goers
