First of all, if you have 2 kids and want to stay in 1 room, it's not suggest as the room is small (budget hotel), but if you have 2 persons, that's the hotel i suggest you to stay, location is good, carpark is just JPY2000 per day, and post office is just opposite to hotel (Yuyu post office window also not far away from this hotel, just around 10 minutes walk and it opens on Sat and Sun, public holiday also), free breakfast is not bad.
If any comments to say, just not everyday has room cleaning service (budget hotel), but it's acceptable as the price is very low during Christmas period in Tokyo. In conclusion, if you drive in Tokyo, i suggest you to stay in this hotel!