It is a very beautiful place decorated with Nordic minimalism. The place was very clean and quiet. It is located very central with close access to beautiful views and turist attractions.
Good to know is that there is no sofa to hang out on so the bed is the comfortable place, the bed is a bit small so you'll have to like sleeping close to each other and there is no luggage storage option (they recommend lockers at Stockholm central station).
All in all we're very happy with our stay!