Quiet, cozy place, in an excellent location near the restaurants, bars, and cafes of Grunerlokka, and not far from the lovely paths along the Aker River and its wonderful waterfalls. For all sorts of dining, drinking, and food shopping, I highly recommend Mathallen. And the Dance Center is right there.
Christer was an amazingly gracious host!
(Just note that there's no workstation or desk, and no kitchen.)