"The 193 sq ft room is very small for two people, considering western standards. For example, there is very little room to even open up two suitcases. This is not a room to spend much time in, except for sleeping.
That being said, location, location, location. It is easy walking distance to most everything in central Hiroshima. Restaurants and bars, including the famous 5-floor okonomiyaki building, are literally just steps away (less than a minute walk). One could even walk to the train station if so inclined (maybe about 25 minutes).
The breakfast has varied choices, but it is only so-so by Japanese standards. It is also small, so there could be difficulties getting a table if too many people are trying to eat at the same time.
We would stay here again, but probably would spring for a larger room."