Season 1 was probably the best series that i've ever watched. Season 2 was great but i didn't really like the 7:th episode because in my opinion it was boring and if not it i would give season 2 a 10 too. Season 3 was in my opinon just good because of the colorized theme and not the like dark one that we saw in the previous seasons, and I think that the humour was kinda bad and the russians from the beginning was a good idea but they made them bad and unrealistic.