I stayed 2 nights at room 202. It was clean and big enough to open my suitcase on the floor. It's quite reasonable price even I stayed by myself. (the room is for 2 people)

202 is the darkest room, I think. I couldn't get sunlight through the windows and couldn't find the weather even when I opened the window, but there are 5 lights (one ceiling light and 4 small lights) so that I didn't feel any inconvenient at all.

Instead there is common space at the foyer with sofa, table, hot water system and microwave, of which the window is facing to the main road.

The wi-fi was very fast and easy to use.

The location is wonderful. Yakitori (chicken skewer) restaurant next door seemed to be quite authentic. I saw it was full of local people, which is good sign to know it's good. Sento (public bath house) is 10 mins by walk. It's open untill 10:30 pm.
If you miss espresso coffee like me, go to Kiyosumishirakawa, which is the next station of Sumiyoshi. It's only 15 mins by walk to go there. I went to ALLPRESS Coffee Roaster and ARISE Coffee. I had nice coffee from both. You can see Tokyo's downtown life here. It's totally different scenery from other big cities like Sinjuku or Shibuya.