Solo traveler so I had the entire bedroom to myself - 2 twin beds which I pushed together to form a large full-sized bed. I normally stayed in hostels prior to arriving in Turku so Ruissalo was definitely one of the most comfortable places I stayed at throughout my entire trip. The location itself is a bit out of the way. It's not in center city at all. However, there is a bus that goes directly to Ruissalo Spa Hotel and back to the central city every half-hour, for the price of 3 euros. Ruissalo has a beautiful pool and spa area - its very quiet and peaceful at 8pm, with very few people during that time. I also rented a bike from the front desk. The lady provided me a map and helmet, and I spent the entire day riding along the Ruissalo trail into center city to Turku Castle. It's a beautiful, scenic ride. Not very tough, the path is fairly level - all along the meadows, fields, and coast. Did I mention it was scenic?
Overall great stay - the staff is especially wonderful. Probably one of the best staff I've ever encountered! Really loved my stay here and enjoyed Turku immensely.