In one word - excellent!
We came to Copenhagen for Ironman race and we stayed in Mikkel's place one wonderful week.
Apartment is very comfortably located, we didn't use public transport almost at all even though we visited most of Copenhagen's attractions with 5 year old child. For people going also for Ironman - running route and T2 are just around the corner, finish line is around 400m away - ideal location.

Apartment itself is very nice, quite and clean. 3 rooms allowed us to live while the child was sleeping. Kitchen is stylish and is equipped with quality pots, pans and other stuff you would need for cooking what becomes a great advantage after you check price lists in the restaurants. From the window you can see garden in the backyard what is important for parents.
Bedroom has very large bed, so large our 3 could comfortably sleep on it. There is also a closet and a chest of drawers available for guests.
Mikkel was so nice he bought for us electrical heaters because it got cold and central heating was not yet on.

Mikkel himself is ideal host, he waited to greet us in the apartment and explained all necessary things about Copenhagen like moving around, shops nearby, places to visit additionally marking this on a map he gave us - we were very please about this. Moreover he bought for us some fruits as a welcome pack which was really pleasant.

Really recommend this place.