Worth noting on the low price: The pictures in the listing are better than the actual apt, and doesn't show the general wear and tear, and faults in the apt. Among things heating cables in bathroom floor doesn't work and the kitchen fan has to be on while showering etc. Otherwise it's a fully equipped and functioning apartment, and quite comfy :)
It's placed in the middle of Oslo city centre, right by the Bislett Athletic stadium. Perfect location for experience everything Oslo has to offer.