This was a very convenient and comfortable stay! Don’t be too anxious about being a little outside the usual hub of Tokyo sightseeing, as this apartment is on the Keihin-Tohoku train line, which connects you to many other areas of Tokyo and down toward Yokohama and Kamakura very smoothly.
We did laundry every day, with the helpful dryer that is included, and went shopping for groceries at the local 24-hour Seiyu. There were many restaurants around, too!
For travelers with mobility issues: This could be a good choice in that there is a small elevator up to the room, and travel to/from Omori train station is relatively smooth (intersections have signals, the terrain doesn’t change much, and there are escalators both outside the station and in Atre). But like many Japanese homes, there are small steps up and down between rooms, especially the toilet and bath area. The bathtub could be difficult to climb into and out of without grab bars, although the shower and bath faucet are easy to adjust and use from outside the tub.
Overall, this was a very pleasant stay for us, and we welcomed it as a respite after busy days in Tokyo!