I kinda feel like Point Grey Pictures (Seth Rogen's production company) is basically a better version of Happy Madison Productions and I feel like this movie exemplifies that point.
I was pleasantly surprised by this movie. The comedy works, the story is good. The acting is well done and the directing is solid. Rogen, Gordon-Levitt, and Mackie work really well with each other and you can tell they had fun with the movie. Some surprise cameos that most will enjoy as well.
As for some issues I had, the story is a bit predictable, but with a story like this, there's only so much that can be done. Also, while I liked Mr. Green as a character, the Christmas Carol stuff that is involved with it feels a bit much.
Still, I had a lot of fun and laughed plenty and I can't fault the movie for that.