I had an amazing stay. the host was very nice to lend me electronic heater since I am sensitive to cold, this helped a lot. amenities were great and I didn't have any inconvenience. also have humidifier which is a plus for winter. I stayed for 5 weeks or so and felt very comfortable. it's in the middle of Omori JR and Heiwajima and was convenient to go to central Tokyo.
the only improvement might be to have blackout curtain in the western bedroom
家みたいな感じですごせました。清潔感も抜群で、オフィスチェアも二つあって仕事をするのにはぴったりでした。周りに特に何もないですが、のんびりしたい人には良いと思います。平和島は近いですが大森駅に15分くらいで歩けて便利です。強いて言えば洋室に遮光カーテンがあるといいかもしれません。