I'll be honest, my friend had to introduce this show to me despite my own interest in all things Japan and Netflix. I'm also not a big fan of reality tv, this show is completely different. It seems a lot more genuine and there is little to no interference from the production.
It's a very simple premise, 6 strangers live in the same house but otherwise carry out their normal life (going to work or school as usual). They can join and leave whenever they like, they don't have to have a specific motive to be there. Some want relationships other want friendships but it gives free rein to the housemates. They do have an outside cast of what I assume are celebrity personalities and/or comedians who weigh in on the events and give a quick rundown of previous episodes. It is a different style of humour so it could be hit or miss for some people but it is pretty enjoyable either way.
I hope that Netflix stick with this show, I feel that subbed series and films often get the short end of the stick in Europe.