Akabane is a must go place while being in Tokyo. Nice restaurants with a good atmosphere, esp. at night, beautiful riverside for a walk or bike rides. I liked most a small turtle shrine nearby apartment. From Akabane you can also easily reach Ueno or Tokyo station.
Guest apartment is just 5 min from station. Thanks to received guide book with pics really ease to find. It's located on a little slope, but still reachable with suitcase. The apartment was clean, had everything needed for short stay, but was smaller than expected from pictures. I think it is for a group of max 4 people, and only if you haven't big luggage, cause there is a really limited space to keep them.
Be careful, the floor is not suited for luggage, and had lots of small scratches.
Location is quite silent, but noise and warmth isolation is typical for Japan. Surprisingly washing machine is outside, on the other side of the window.
I was generally satisfied with that place and can recommend the host. Thank you Eri!