I liked Leppä's previous film "Pitkä kuuma kesä" but didn't find it as great as most young Finns seem to. So I didn't expect very much of this. Maybe that's why I was almost blown away and really laughed a lot during this flick.
The characters are quite rough stereotypes but the actors do a great (or at least decent) job portraying them thus making them painfully disgusting or funny. Especially Amanda Pilke's performance as young Saara really hits the spot. What disturbs a bit is that sometimes people start laughing in the middle of their lines. I really believe that is intentional and not just poor acting. However, it sometimes makes you feel as if the actors are making up their lines as they speak and thus have a hard time showing a serious face. This disturbs especially with Unto Helo, whose acting in "Pitkä kuuma kesä" wasn't really my favorite performance either.
I think the funny bits are mostly in the dialogue, so non-Finns might not find this nearly as funny as I did. I also guess you get the most of this if you're under thirty years old (at least mentally :) ) because most of the
action involves young guys messing around and boozing. Still, there's also a plot so this is not just a Jackass episode.