This hotel is located in hon-Hachinohe (本八戶) 2 stops from the main Hachinohe JR station 八戶(impossible to walk there from Hachinohe, and it takes 15 mins walk from the hon hachinohe station). If you only stay here for 1 night, I would suggest you staying closer to the main JR station, as the bus terminal to the main attractions is just next to it.
Though it’s a bit inconvenient, facilities of Dormy inn are really good. Just I don’t like the air conditioning, seems it was not functioning well most of the time.