Clean and (incredibly) spacious room. Property and all interior felt very clean and new as well. Was incredibly comfortable. Thoughtful amenities including washer/dryer, daily clean towels, mini fridge with a legit freezer, etc. Through instructions were provided (and in English) such as WiFi, air conditioner, washer/dryer, daily trash collection, etc.; every question we had was answered. Would absolutely recommend and return if visiting Japan again. Thank you Grand Base Osu!