Spent one night at Bokan while on a business trip. The interior of the hotel is a little old fashioned (esp lobby), however the bathroom seemed to be newly refurbished. Shower head was already broken though.
The breakfast was fine, but nothing out of the ordinary. In general I would say that Bokan was an acceptable choice. I wouldn't mind going if I went to Graz on business again. However, if I for some reason would go there on vacation, I'd look elsewhere.