I liked the second series better than the first. I found some of the graphic content in the first a little uncomfortable but I still carried on watching because it was just so original and funny - and Phoebe Waller-Bridge's asides to the camera were so brilliant.
There was some research published recently which claimed that swearing "has many positive virtues, from promoting trust and teamwork in the office to increasing our tolerance to pain." I feel that any rudeness, sarcasm or aggressiveness is unpleasant, whether accompanied by swearing or not.