I greatly enjoyed my stay at Per's place as it was very comfortable and particularly quiet. One would think being in and around such a major city things would be noisy but that was not the case at Per's house at all...in fact at night I would call it serene.
My communications with Per regarding check-in/check-out were excellent. He was always quick to reply to any questions.
The interactions and discussions I had with Per were very satisfying as we had a couple of opportunities to talk about a wide-array of topics.
The short and brief interactions I had with his wife and children were great as well...a very nice and hospitable family.
Two things I really appreciated is that Per had a shelf in the refrigerator I could place some food and things and because my plane was taking off in the evening he allowed me to keep my bags there so I could then go out and enjoy the rest of my trip in the city.
Recommendations:
1) If you like to bike get a 3-day city bike card (the convenience stores have them). The bikes are functional and unlike other major cities' bike systems - they let you have them 3 hours at a time. This allows you to focus on exploring and seeing the sites instead of having to worry after a brief time where the next bike station is.
2) Do the under the bridges water tour as well as the Canal Tour. If you like to go to museums as well then you should just get the Oslo pass.
3) Go to nature park next to Lake Brunsviken which is across from the University of Stockholm. It is very close to the city and it is a great way to bike/hike and get out into nature and relax.
Overall, I highly recommend Per, his family, and his place.