We stayed for four nights, and found it to be a great base to explore Asakusa and also other areas of Tokyo.
The beds are comfortable, and covers warm enough for winter. There are heat pumps in every room, although we only used the one in the living space.
The living space is small, as is the case pretty much everywhere in Tokyo, and there is just one tiny couch. If you have multiple people wanting to relax after a long day of walking, you will end up hanging chilling out in the bedrooms!
The kitchen is setup with enough dishes for a small group of people, but if you are used to drying dishes after washing rather than draining dry, we found there were no tea towels.
We found that it was a longer walk to the station that advertised - more like 20mins to either Asakusa or Minowa stations, not a great distance, but worth noting if you are going to be carrying heavy luggage.
Overall we really enjoyed our stay, and would definitely stay again should we return to Japan.