I thought it was a slow-burner didn't like the first season at all.
Same with the other series they made, the American version of The Office which also didn't get into it's stride until the second season.
I think that show has the edge on Parks and Rec, for the first 5 seasons until Michael Scott left anyway.
Don't know whether there's any truth in the rumour that Chris Pratt has become a total prat since becoming a movie star.