Great place for a couple (or small family) in Gamla Stan.
The apartment is in the old town and is as central as it gets while still being tucked away enough so there is no noise. It is well equipped and it has everything that one would need for a comfortable stay while in Stockholm. Kitchen is very functional and there is a washing machine also. TV does not work, but we didn’t care about it.
The only downside I have is the speed of the internet in the apartment which is pretty much unusable. I had multiple work zoom calls that I had to attend and had to tether through my phone as the WiFi could not handle video and files sharing so if you need fast, stable internet this might not be the best place.