As a self-checkin property with no staff in attendance, arrival is somewhat dependent on having a working phone. Like many people, I travel with an international data eSim which cannot receive voice or SMS messages. The advance checkin process also requires a good, stable connection. All this is less than ideal. Note that arrival at the property normally seems to require a phone call to get the door opened. (Complete instructions are posed in Norwegian, so there may have been other options which I missed.) I was saved by the chance exit of other guests, allowing me to slip in "under the radar". Otherwise, I would have had to reqactivate my home voice Sim and pay the fee for a day's international service. If I had been aware of all these details, I would never have booked this hotel.
The property itself is a charming old building with modern, comfortable amenities, though the (single) elevator did not inspire great confidence. The "kitchen" is fairly well equipped, with the notable exception of NO MICROWAVE,