We stayed in the studio. Its basic equiped but has all you need for a few nights stay. Its close to the public transport, just one minute away to tram 11 (around 20mins to central station). Also 5 minutes away is a grocery store for buying food and stuff which is open until 22:00.
It has free parking downstairs of the studio location. So all in all good value for money. For sure I can recommend Claudius place near Oslo which by the way is a great town to visit.