This is the best place to stay in Oslo if you want a high class apartment, a very pleasant and professional host full of experience and recommendations where to go (and not to), a perfect view AND a dog sitter! TK took care of our dog for one long afternoon and gave us the chance to walk all the way upstream the river Akerselva, from where it goes underground up to the lake Maridal where it starts. A must when you are in Oslo!
We would go there again when in Oslo next time.