Location is perfect, but you need know this is not an apartment in a regular Japanese building. It's a 7 floor building (more like a hotel) full of apartments that are the same for rent. There is always 1 person (staff) to check in or check out, and all of them were really really nice. You should also know this apartment is the first I've seen in Japan (been there 3 times) that does not have a Japanese bidet.
The bed quality is extremely low. You could feel the sprints, it is clear that it is an old matress or of the lowest quality, when sleeping in the borders you would feel like you were going to roll down to the floor. The A/C works fine but it's on top of the bed, so when you turn it on, you immediately start freezing, which is really uncomfortable. There is no free plugs available, and no bedside table. So you need to charge your electronics by unplugging the microwave, which is not really that comfortable.
It is OK, you'll get by like I did but I've stayed in some 6 Japanese airbnbs, with same price ranges that are far more comfortable and with higher quality beds and bathrooms.
PS: I would avoid staying there in the near future as there are 2 construction sites immediately next to the building that work even un Saturdays, so resting can be challenging.