All seasons are fantabulous. When i start watching it i watched all day long without taking break except some emergencies but after the completion of this show I'm in depression like thinking that why i watched it, not because it is bad because it is so so good that my brain cell thinks that how can i watch any movie or series because whatever good the movie is its always below breaking bad. So i suggest you all to watch it because after a week I'm all right and wanna watch it again and again.