Mune's place was good for us, a family of four, but might be even better for a group of young friends. The place was clean and well-stocked and there were some very considerate extra touches such as crayons for the kids and a baby gate at the top of the stairs. The only issues we had were with the super narrow kitchen and the slightly musty shower room, which were only an issue because we stayed for more than a month. If you are in Tokyo for a shorter stay or aren't expecting to cook much and prefer to use sento instead of the shower, I would wholeheartedly recommend Mune's place.