The studio is quite small but with everything you need for one person. I stayed there for almost 3 weeks, however, I would recommend it for shorter stays, maybe a week, since there are not many things in the kitchen and that might be inconvenient for longer periods.
The studio is quite dark since it is located at the bottom floor, if you like light spaces or need to work this is probably not the best option.
However, the best part of the studio is you have an AMAZING location, transportation is super close (metro, bus, ferry), you can walk across the bridge to the city center or walk within Södermalm to different stores and restaurants.
Overall I would day it's too expensive for the studio itself but I guess location compensates most of it. :)