Fredrik's appartement is very nice, cosy and clean. It looks exactly as described on the website, it was perfect for us (2 adults and 1 kid)
Location is good, very close to the subway (tunnelban), in the heart of Ostermalm. A few islands are also within a walking distance (Djurgarden, Skeppsholmen + Kastelholm)
Fredrik provides very accurate information, just in time, as he says he would. He even sent us very helpful information to get to the appartment from the airport, the subway station, etc. He replies back very quickly to any message, communication is really smooth and nice, we do recommend his place. We had a lovely stay and will be happy to come back!