The place has a great location near Shin Okubo and Higashi Shinjuku stations. It's easy to find the place, the host gave good instructions but if you have pocket wifi like I did it's easier. Inside the shared bedroom there was a recording camera which I didn't noticed the first day and the host didn't told anything, not in person, not in the airbnb announcement. I was sharing the room only with another girl and I made an honest mistake by changing my clothes in the bedroom. Once I noticed the camera I told the host what was happening and he refused to take off the camera because of security reasons and he also said that guest have had sex in the past on the bedroom and he wouldn't risk his place.. I was very unpleasant with his policy and decisions, we tried to talk about it but either way he wouldn't refund my money back if I decided to leave..
The bedroom was big and clean but the beds were hard and uncomfortable .. beds were made of wood, so if you moved while sleeping, it will all cringe. Kitchen, bathroom and toilet are shared.
The kitchen and the toilet were always clean but the shower was disgusting.. it had mold on the floor and doors, and also I saw pubic hairs when I tried to use it, so definitely flip flops are a must if you want to use this shower.
The host provided with a password to unlock the doors so you are free to come in and out as much as you wanted to, at any hour.
Overall, is not a bad place but you should keep in mind that you get what you pay for.