It’s a particular flavor of comedy that’s pretty dark at times and exposes some societal issues and the unappealing side of humanities vices. It really isn’t for everyone and I can understand it being an uncomfortable watch for people who may be able to empathise a bit too much with it. I respect it for really hammering home how disgusting smoking is and I don’t think the show should be criticized for being icky, but I would not recommend this to most people.