I enjoy using Thon Hotels because they have everything I want i.e. a nice bed, a shower with good pressure, a clean room and a decent breakfast. I got all four on my visit. This hotel is very close to Majorstuen, which is a bit of a transport hub, with frequent trams, buses and trains servicing the area. It's also within walking distance of Vigelund Sculpture Park and Frognerbadet.
My one quibble - and it is a very minor one - is that the television in the room was temperamental and twice I had to speak to staff about it not working. It took a dozen or so efforts just to get it to finally show the Live TV menu and then it would only show one channel, which happened to be Danish. Very frustrating.
It didn't spoil my trip and I would definitely recommend this hotel, which is a short tram ride from the centre of the City.