The apartment itself was very satisfactory. It is perfect for a couple traveling western Iceland, in theory. There is a pretty much full ( small) kitchen. Fridge, utensils, pots, pans, etc. The building and the rooms were clean, no dust or grime aside from a leak around the vent in the bathroom. The building is quite noisy, siding flapping outside and the wind through the vents was quite loud, this isn't necessarily an issue but something to be aware of given the windy location right by the coast. Also the floors are EXTREMELY squeaky.
Unfortunately the communication makes getting to the location very stressful. It is located in the parking lot of the neighboring hotel with the same phone number and no front desk other than a sign to a phone number. The problem is when calling that number I received a message saying "you cannot call this number" and since I did not receive the welcome email I was forced to go into the hotel and knock on a door of a very rude but oddly helpful "not manager" living on the property with access to call the owner and he has the key codes in his room. Luckily we were able to get our room eventually without too much more issue.
If the owner would fix the lack of communication, ensure the emails are sent with check in instructions ahead of time, or have a phone line placed within the apartment building or the hotel itself to call of there were any issues, this would have been a very nice stay.