Amazing place at a great price. It's a short walk from a variety of restaurants and all the Akihabara sites! A 5 minute walk to the station will take you to all the major locations in Tokyo. We simply stayed here our entire trip and got everywhere we needed to go quickly.
The room was great, had comfy beds, and was very clean. Different rooms have different layouts, so some rooms might fit your/your group's needs better. If you have any concerns, just ask! The staff is very welcoming.
The bathrooms might seem a bit cramped for Americans, but this is pretty normal for Tokyo. You'd be hard pressed to find a place with a bigger bathroom in this price range. Wasn't an issue for us, but I can see how others might find the situation difficult.
As mentioned by other reviews the walls are a little thin, so noise is a concern. There's a quite hour rule starting around 9 or 10pm. The first half of our stay was dead quiet. I am sure my travel companion and I were the only ones on that floor. The latter half we could hear people coming in late and talking. The noise wasn't unbearable, but it can be a bit distracting.
Overall, I highly recommend Marutomo hotel. My travel partner and I will be back next year!