This is a great place to stay. Warning for those sensitive to noise, this hotel is under the train rail way and the trains starts at 5am till 12mn so expect the usual train noise during those times (hotel offers earplugs). My family and I aren't that sensitive, and it is sort of ambient noise that helps us sleep.
Place is clean, very close to all the critical places you'd need in Akihabara: train stations, dining, shopping and sight-seeing.
My only concern is that they use QR code for entry to the building and to the room. They don't have 24x7 staff, so the QR code is very crucial for a good experience so make sure to take a photo and keep the original printed paper safe.
Highly recommended place!