A budget hotel on a ship, which was a very unique experience. It owned three ships, very close to one another. The kitchen, on one of the three ships, was good, and although the room was small, considering the price, I think it was well worth it. It was a walking distance to Gamla Stan, and to Stockholm Central Station as well, so it was good for sightseeing.
The only down-side was the shower. It was too hot, I had trouble adjusting the temperature, and there was little space to put my clothes. Other than that, it was a great place to stay!