As you said, not the best game in the series when you think about puzzles, which are the butter of a point-n-click game.
But who the hell cares about puzzles when you have a beautiful ending like this that wraps the entire series in a neat little package?
The ending was fenomenal, this whole game was fenomenal. A great ending for a great series.
Don't know if you'll be making more games in the future, JonBro. But if yes, I only wish you the best of luck, you creative dog.