Very lovely place to stay! Check-in was easy, Mitsuko's husband came to show us when she herself couldn't. The apartment is small, but fit two people well enough for a few days. You get what you pay for, it is nothing fancy but has all the necessities. The extra bed was surprisingly comfortable!
Getting around was fast and simple, with only a few minute walk to the nearest station, and the connecting lines get you anywhere around Tokyo. The apartment is just off a shopping road with lots of stores and restaurants, so groceries etc are easy to attain. Nonetheless it is very quiet in the area.
Mitsuko and her husband are great hosts and were so helpful, they even came to our aid late in the evening! Communicating with them was fast and easy, as long as you do it via airbnb messages. All and all, definitely recommend this place!