Overall, this was fine, but there were some issues.
The room was clean and comfortable, and fine as a base for exploring Oslo.
There is basic cooking stuff there if you want to self-cater, and there's a Mega Coop supermarket 5 minutes away in Aker Brygge. There's no kettle, though.
However, checking in was really difficult as the confirmation email with the access code wouldn't send for ages. It took an hour to fix, which was a long time after many hours travelling. The woman who sorted it was helpful and polite, but it was a frustrating time.
Oslo was experiencing a heatwave (30 degrees), and we took ages trying to work out how to make the air conditioning work. Having phoned the helpline again we were told it only applies to the bathroom, which isn't clear; and we never managed to get it to cool the bathroom down.
There's a lack of information in the room about what there is, how to do things. E.g. the TV has no tuned in channels, and the helpline said it was only there for guests to stream stuff from their own devices, but it would only do audio, not video. There's a QR code with the room guide, but it was has very little information. Not having staff on site means it's not easy to navigate when you first arrive.