The first season was an raucous romp from beginning to end. The second season is absolutely terrible. None of the characters are likeable anymore. I kept watching, thinking "Okay, this is the episode where things change", but that never happens. Things just go down, down, down...
Season 1: 8/10
Season 2: 2/10
Overall: 5/10
Do yourself a favour and watch the first season, then forget that season two even exists.