Very nice hotel, simple but comfy rooms, friendly staff, breakfast has all you need. Very quiet unless there is an event on board in the evening, which just happened once in the 5 nights I stayed there.
Great location, right in the old harbour, just 15 min walk from city center. Sightseeing tours by boat are close-by.
There was only one issue during my stay - reception is supposed to be open from 7 am to 9 pm, but in reality, mostly it only seems to be staffed in the afternoons when new guests arrive. Also, my keycard did not work for the main entrance which was an issue when reception was closed. Same was the case for other guests. There was a number that you could call so somebody would open the door for you, not it's not ideal of course. However, I am sure this is just a temporary issue and will be fixed soon.
Otherwise it was a very comfortable and charming place, well definitely stay there again when I come to Gothenburg.