Way more convenient than I thought - although the closest station was Kojiya, you can easily walk to Keikyu Kamata station which is one of the hub stations in Keikyu line and it's really easy to get around.
Also the downtown area around the Kojita station had way more shops and restaurants than I've expected - multiple grocery stores open until late, nice cafes and cozy restaurants.
As some people mentioned, the place is not as clean as you expect to the professionally cleaned airbnbs. It's not like dirty or stinky, but you will find some stains in the sofa and hair clinging to the legs of the chairs, mold in the duct and so on. If you don't care too much it's going to be just fine, it's like visiting a house of your friends form College.