The Colon stay is good for being in Akihabara and easy to walk to stations that connect you to other areas. There’s plenty of space, it’s a quiet area and has a modern Japanese bathroom.
One small hiccough was that the room wasn’t ready until after the checked in time, but the cleaning staff were very apologetic and friendly. There is also no proper luggage storage as there is no staffed reception. You can stash it in the basement where the washing machine and all of the cleaner storage is, but maybe bring a lock chain to secure it.
Overall would recommend