We traveled with 6 and 9 year old boys.
Yoshi was super responsive. The price is great for the location, which is quiet, easy to walk around, and close to the station, a short walk from exit #2 at Ryogoku Oedo station.
The place is new and although small, had everything we needed, including a washer (with enough hangers to hang everything on the porch) and ofuro, even with a cover to keep it warm.
The mini couch unfolds nicely for a third bed.
There were a couple convenience stores nearby, but the best food is about 7-10 minute walk to the JR station. Los of great options there. We also saw a few sumo wrestlers exciting the station. It's near the stadium.
The edo museum is basically across the street, and is awesome.
Skytree is an easy taxi ride - 1500 yen or 30 min walk. Not much between the two when walking.
Tokyo station is only 1500 yen taxi ride away.
Trains can be taken between these places and the apartment, but it's more convenient and not much more by taxi with 4 people and luggage.
There is a nice onsen/ spa nearby that I wanted to try but didn't have time. There are also a lot of dentists nearby just in case. They don't ask accept cash or foreign insurance (I got a chipped tooth fixed without appointment a few blocks away).
If you're looking for an affordable, child-friendly option in this area, don't think twice. And open the windows for a nice breeze at night if it's not too hot out. Not noisy and really good rest.