For a basic stay the night before your ferry its fine. My family had a double bed and bunk bed, but the bunk bed had no rail, so we pulled the mattress down and there was just enough room between a wardrobe and bed for it on the floor. Sheets and towels were clean, floor is quite old and the room needs a good mopping. The AC worked and the bathroom was tiny, but the 3 min walk to our ferry at 6:30 am was perfect.
For the price, you get what you pay for.