We had a wonderful stay. This is our first visit to Stockholm and the city is amazing.
The apartment is beautiful and very convenient. Based on Thomas's suggestion, I was running around the lake and enjoyed it very much :).
Getting to the metro station requires a ~20min (beautiful) walk, or using a bus.
All in all, we had such a great time and were amazed by how beautiful the city is.
Thomas was very responsive and helped with every question we had.