Great location, super friendly staff, beautiful rooms and v spacious for a japanese hotel with enough room to sit and play games or enjoy a drink/ bite to eat (we had a 4 person room with bunks and friends stayed in a 6 person room which was also spacious with 2 sitting/ dining areas). Beds are super comfy (but firm) and overall we had a great stay.
Highly recommend for families traveling with kids. Easy to get to from Ueno Stations (Keisei and JR coming from either Narita or Haneda), metro just around the corner, as are department stores, convenience stores, restaurants and bars and everything Ueno has to offer. Being so new, it’s not on google maps yet so drop a pin on your smartphone or use the in-house phones that you can bring with you for the day for internet and local calls up to 30 mins