Watched it a few weeks ago. no spoilers here, don't worry.
Started watching part 11 first. ALERT: DO NOT do that!! start from the start!!!!!
Then watched 1-11. and it's great. More importantly, they were able to answer most of the mysteries made early in the story. No frustrating loose ends in sight.
But then I found out there was actually a part 12. Which is more like a making of the series.
Lotsa serious/real stuff here for a series with so much comedy. Interesting, and actually a little touching.