We just started it last week and we're through half of s2. I have mixed feelings. It's entertaining (after that first episode that took me like 5 attempts to get through) and I like the sisters, but sometimes I think it should have been called Idiot Sisters instead of Bad Sisters. Their plans are terrible and their reactions are worse. Rule #1 of doing anything bad is not telling anyone. I realize that they are "normal" people, but their reactions with the cops always raise suspicion. Learn to just keep your mouths shut.
Anyway, I'm trying to decide which character is the most annoying: the insurance agent from s1, the old lady from s2, or the young female detective from s2? I guess they make for a good foil, but man you just want the sisters to punch them or something.