Clean, well organized and modern amenities. Beds are well sized, can sleep 4 next to each other. Rest of the place is small but this is Japan so already knew that!
Minor issue: the pans are a bit thin, food tended to burn. It's a small kitchen, so don't expect to do heavy cooking.
Just a minute walk to the train station. Get your groceries at Summit nearby.
Great place if you want to be near Haneda airport, we were basically on an extended layover and wanted to be able to settle in quickly and leave quickly.