We stayed here for 5 days. The apartment was clean, tidy, modern and comfortable. It's worth noting that the washing machine is a communal one in the basement and you have to book a time slot to use it, but there is also a laundrette up the road if necessary.
It's only 5-10 minutes to central Oslo by bus, just down the road from the amazing Vigeland sculpture park, and also a short bus ride to the maritime and folk museums on the Bygdoy peninsula.
The neighbourhood is quite upmarket and quiet (apart from a bit of traffic noise from the nearby tram line) with supermarkets, restaurants and cafes nearby.
Communication with Maya was easy.
We would happily stay here again.