We have enjoyed this little pub near our apartment at Saga Hotel. It was right across the street from the tram stop. It's a nice area of town near the Embassy's, lots of other apartment buildings and food markets.
The Saga Hotel apartment worked perfectly sans the sofa bed - transportation to tram 19 was only a block away. The apartments are located a few blocks from the hotel. Still a double bed, dining area, two kitchens, two bathroom, two balconies, sitting area, and 40" TV for $11,525 NOK was a bad deal for 5 nights in Oslo.