I was a bit apprehensive since I'm a solo female traveller staying in a hostel for the first time. I booked it out of necessity and ended up in a shared mixed dormitory. However, my experience at Omotenashi exceeded all expectations and put my fears at ease.
There were a lot of families with young children staying there and female receptionists who made me very comfortable. The people in my shared room were very respectful and I had some of the best sleep I had in days. The facilities were clean and the hot water was decent. Overall, I felt safe.
The front desk also held onto my suitcase while I went to explore Miyajima (I arrived very early in the morning). The hostel is close to Zigozen station, where you can catch the train to Miyajima ferry port. Very convenient location.