Host was very responsive on each occasion. When we relayed an issue or request the host took action immediately to rectify the problem. I suggest you check in advance with the host to see if a mattress topper is available. We found the mattress too hard for us. This was quickly remedied with the swift delivery of a topper, and other bedding which made our stay close to perfect. Washing machine really helped as well as the drying function in the bathroom.
If you chose to cook you can with a small rice cooker, microwave and stove. The apartment was warm (mid December and didn’t need to use the heating).
The apartment is in one of the most convenient locations in Tokyo in my view: close to some great restaurants (sushi, soba, tonkatsu, yakitori, etc) and the usual cafes including Hoshino. Bic Camera is next to the station for your other shopping needs. Direct subway access to Ginza, Tokyo, Omotesando, Shibuya. Roppongi and Tokyo midtown is a short walk away