So while the walk to the back or main building of Senso-ji temple area is 5 minutes, the walk to the south end of the shopping street is 10-15 mins depending on how fast you are walking (goes slower with luggage). It's best to take the train to and from Tawaramachi station, NOT Asakusa (that station is 10 minute walk away which is great!). This 3-minute thing in the listing name isn't accurate. It didn't matter to us at all, the location was fine, I just wanted to mention it.
There is some construction going on near the unit right now (April 2018) so keep this in mind if you plan to sleep in on weekdays.
One of the drapes is great at light blocking, they other isn't so keep that in mind as well.
Bring your hypoallergenic pillow case - the futons and pillows were so old and full of dust mites that our sinuses were super bad and plugged up by morning. The futons are very flattened, probably the most packed down we slept on while in Japan and rivals the most uncomfortable. There's 4 in the picture, but if you book 2 people you only get 2 in the room.
The amenities are great however - getting your own bathroom (however small, doesn't matter, having an in-room toilet is great), really nice and stocked kitchen, fridge, etc. Good taiyaki and other sweets nearby. There's a good conveyor sushi place nearby too. Check-in was flexible and easy. The room is spacious which is nice after being in other really tiny/cramped tokyo rooms.
Maybe it's just because I stayed one night so the cleaning fee nearly doubled the price of my stay, but I don't think this place is a good price for the area, especially considering the bedding situation. The nice amenities just can't make up for that.