We had a wonderful stay here!
There was no trouble with receiving the access codes for the unit. In fact, I got them about 24 hours before the reservation started. Also no problem with the wifi, as mentioned by previous customers. We were prepared for the possibility of a 4th or 5th floor walk-up and got a unit on the 4th floor. Luckily, as we arrived, Marcus from the management office came out and helped us with our bags! (The management office is in the building)
The unit was spotless and beautifully furnished. Kitchen amenities are minimal yet useful (plates, glasses, utensils, pots, oil/vinegar, salt/pepper, stovetop/oven, dishwasher). Bathroom was sparkling and had decent amenities as well (liquid soap for sink and shower, towels, bathmat, washer/dryer). Warning, no hair dryer or iron (though we mentioned to Marcus that we needed an iron and he brought one up to use, then return to the office).
The unit could use some more mirrors as the only one was in the bathroom.
The location is perfection in Grünerløkka. Highly recommend!!