I'm going to start this off by saying I have had nothing but positive experiences in the past with AirBnB. This experience was terrible. The mini hallway that leads to the unit looks sketchy. Upon arrival in the unit, it smells like cigarette smoke; the entire unit. The host didn't suggest anything to help. Photos of the unit make it look larger than it is, it is very small (compared to other Tokyo locations in Shinjuku area.
Found bugs (cockroaches) on multiple occasions in bathroom, entrance and in the common area. The sink bowl floods and takes a very long time to go down. This is not ideal at all. The ONLY positive thing about this unit is its LOCATION. 3-5 min walk to Shin-Okobu station. All in all, I was greatly disappointed.