This show is utterly relentless. These people hopelessly and joyfully awful and inappropriate. There is not a redeeming quality in one of them and it is so rare to just let comedy be comedy. In the middle any situation the characters are unbreakable, unforgiving and and uncompassionate. They are selfish to a fault and you can't stop laughing because they don't let up. The one straight laced character in the show generous character in the show is the dad an he is like the rest of us, he can't quite understand these people but he loves them anyway.
My only advice is to watch it with the subtitle because the Irish accent is hard but I wouldn't have it any other way.