Ingvild's flat would be great if you're visiting for a long weekend and know your way around Oslo.
For a week, however, the flat wasn't the most comfotable we had stayed in. The bed is smaller than a double and uncomfortable for 2 people. Particularly in the hot summer. Additionally, the curtains didn't block out much of the light, which of course there's lots of in Norways summers, so we didn't have the best nights sleep.
Picking up the keys from the 7/11 seems to have worked well for previous guests, except when we picked the keys up the staff member told us he didn't have them! Which was a little scary at midnight. We did find them when we took the box filled with keys off him and looked ourselves.
We've stayed in a few air bnbs before in different countries and this one wasn't the most welcoming. Some hosts leave maps, leaflets, places to go, this was not the case. The host hadn't hoovered before we'd arrived so it wasnt the cleanist place. We definitely left it cleaner than we found it. There was also food left in the fridge which was going off. And we didnt feel like there were many ammenities for us. All the bathrom products and teas and coffees in the kitchen definitely felt like the hosts and not for guests. Also a note to future tea loving guests - there isn't a kettle! You can boil water on the hob which is fine. But a kettles easier.
It was great being in Grunelokka (sp?) And it is very near a lovely park.
As we mentioned we have stayed in air bnbs before in different places. When we use air bnb we want somewhere lovely and personal to come back to after a busy day. We felt that the negative aspects of this flat really over shadowed our holiday. After all we were on holiday and sometimes it didn't feel like that. Lack of sleep due to the bed and light was really uncomfortable. Also there is a fee for cleaning which didn't feel like it had happened before we came.
It is a good flat for a short stay and if you know your way around, but not for a whole week.