We had 4 adults staying for a week and had a great time. The apartment in is a fantastic area - there are cafes, restaurants, and shops galore within 2 blocks. There is also a wine shop, 2 grocery stores, and a chemist in the same immediate area. It's a really easy 8 minute walk to the subway, about 15 minutes into the center of town, and about 20 minutes to the main train station. We signed up for Donkey Republic (bike rentals), which was amazing, so we could bike anywhere that was too far to walk. Lots of amazing cycling infrastructure, so really easy and fast to get around by bike.
The apartment is great - we were very comfortable with the 4 of us. There's a nice kitchen to use, a deck with a lovely view, and the bulk of the apartment is a really nice open space where everyone can hank out in the evenings and be together. Be aware it is up 5 flights of stairs (84 steps!) and there's no elevator, so you have to be OK going up and down a few times a day.
Morten was very communicative and responded right away whenever I had questions.
Would definitely stay here again!