Kori is a spotless, convenient, quiet hotel that is close to restaurants small (better) and large, great shopping, and a short cab ride away from the train station. The staff is fantastic, the rooms are large. A definite consideration for a stay in Hiroshima.
The Peace Memorial and Museum are a good trolley ways away (refer to Google Maps), there is a great small, local restaurant two/three doors from Kiro, more restaurants and serious undercover shopping within walking distance, and oyster places all over the place.