The apartment is as described. Rather spacious. A larger bed which could fit 2 people, others need to sleep on a madress on the floor or on the expandable sofabed. The pocket wi-fi worked well and it´s a nice feature that you can bring it with you to town. This is not a luxury apartment but well good enough for a few nights stay in Tokyo.
It´s located close to Shinjuku and close to several subway and train routes which makes it a good place to explore Tokyo from.
The downside can be that it is also just at the brink of the Kabukicho-area which is told to be Tokyos biggest red light district. There are some "love hotels" nearby and at weekends you could hear sirens during night time. If you are traveling as a family or with small children this i good to know even though i would say it is easy to avoid the area by just simply not go in that direction. And walking through the area i never felt harassed or uncomfortable.
Overall a good stay and i could recommend this listing when visiting Tokyo.