We enjoyed very much our stay at Henrik's apartment.
The apartment was very comfortable & cozy, it had everything we needed.
It's located in a very nice neighbourhood, very well communicated (the tram stops only one block away) and with lots of nice bars, restaurants and shops around.
Very quiet at night and with several convenience stores and supermarkets close to the apartment.
Although we did not get to meet Henrik he left us a very useful list of recommendations and he kept in touch all the time to make sure we did not have any problem.
We totally recommend Henrik's apartment if you are planning to visit Oslo!