This place is very close to everything in Asakusa, also only 2 stations from Akihabara and the Yamanote-line.
We stayed there for five or six nights, and most of the times it was pretty quite at night. The place is clean, and once I ran into Yoshimoto-San, who seems to be a very nice guy.
If you’re looking for a real cheap grocery store, you should head to Hanamasa, which is a 10 minute walk.
I recommend taking the Tsukuba Express from Akihabara, the use Exit A, go thru the bicycle parking lot towards the exit up the slope, turn right the first corner, right again, and there you are, next to a restaurant. Much better than the Ginza line, especially if you bring heavy luggage.
I totally would stay there again.
おすすめですよ！場所は便利だし、部屋もきれいだし、そして大体静かです。電車なら、秋葉原からつくばエクスプレスに乗って、浅草で降りた方いいと思います。