Great location, great host, great apartment.
We stayed here with our two 5 year old children. The apartment was just as represented in the pictures. The kids had no problem with the stairs (up to the apartment or within the apartment).
The kitchen was well equipped, many pillows and blankets were provided and there were umbrellas as well.
Tom was very communicative prior to and during the stay. The location was great for exploring and we got a three day ferry pass and went easily to Djurgarden often for the many kids activities located there.