The way Black Mirror works is that each episode is a different story with different characters, set in a dystopian future with tech. Because of this, some episodes aren't that good, but most of them are really good. They'll make you reflect upon yourself and question things. In my opinion, it's a really different and interesting show. Also because each episode is different, you get to see comedy as well as drama and crime/mystery. TLDR: You should watch it if you have some time to spare.