We had a great stay at Synne's apartment. It is a nicely decorated and cosy place, and the location in Grunerløkka is great! Public transport very closeby. Synne received us herself upon check-in and is a very responsive host to any questions we had. It should probably be noted that there is construction work going on in the building next to the apartment, however with windows closed this gives minimal disturbance. Would definitely recommend and will keep in mind for a future stay in Oslo!