This definitely wasn't the best episode of Black Mirror, but I still enjoyed it for what it was. Not a groundbreaking concept, but interesting and really not that far-fetched. Quite humorous for a Black Mirror episode too. I just think they could have done a better job showing how the concept could effect us. Not a ton of consequence in the episode and a bit predictable. Though it's far from perfect, please don't listen to people saying you should skip it if you're thinking about watching it! It is most definitely watchable. Just because it's different than other episodes doesn't mean it is bad. Give it a shot and form your own opinion.
