Central, completely as advertised. Good instructions from the host - easy to arrive and use the place.
We were two adults, two kids (13, 11). We stayed 8 days and had no complaints or cause for concern.
Size of rooms was just fine - nice to have a lounge too. A couple of TVs and air con were handy. We could keep our 3 suitcases in the corner of the lounge but you could leave them in the entrance area by the lift where you take off your shoes.
We didn’t use the kitchen apart from the fridge / freezer where we stored food from the local small shops (like 7-11) nearby to eat for breakfast.
I thought the shower room / clothes drier room was really good. Shower water pressure and warmth of water were excellent. Technology meant that it can be flipped into a drying room for your clothes over night or while you’re out. Your only limit is the number of hangers. We used google translate to figure out many of the buttons which are in Japanese but some of it is just logical.
I was really pleased with our location in Tokyo as a visitor trying to see the sights. This place is a number of blocks from Shimbashi station. Easy to walk with suitcases when you arrive and leave - flat roads and crossings. Safe. Directions from the host are good and google maps is helpful too.
Really central location with links to various train lines. It is a business area so there are lots of restaurants (used by people going home after work and especially on Fridays) to choose from. We mixed up between noodle places, restaurants that businessmen use to a steak house and a burger place. Everything was lovely. Just go and try!