We had a great stay at Itoe's apartment. It's a 3 minute walk to the nearest metro, and a 10-15 minute walk to Sensō-ji. The apartment was clean and comfortable. The appliances and pans/plates/cutlery are all relatively new and in great condition. The washing machine is especially nice. The bed is comfortable as well.
Two minor issues: 1. We didn't realize that the bathroom is actually separate from the apartment. We had the entire floor to ourselves but when you exit the elevator the bathroom is to your left and the rest of the apartment is through the (locked, keypad) door to the right. That was a bit awkward. Also the bathroom did not have access to the air conditioning, so it was a bit hot in there. 2. The water pressure in the shower, bidet, and faucets was rather weak.
Otherwise, no issues with our stay. I would definitely recommend this apartment for short stays (1 week or less) and if you really want to be in the Asakusa/Ueno area.