Marta's place is amazing, very spacious and clean. In a great neighborhood! The location is perfect for sight-seeing and everything was easily in walking distance. There is a supermarket around the corner and the apartment was well equipped. My friends and I thoroughly enjoyed our stay in Marta's apartment. Check-in and check-out was super easy, communication with Marta was great, and she even let us check out late as our flight wasn't until later in the afternoon. I highly recommend staying in Marta's apartment if you are visiting Oslo!