The communication with Mari was good. We got good directions to the flat and found it easily. The flat is in an excellent location - near lots of buses and within walking distance (15-20 mins) of the central bus station and Karl Johans gate. The flat was very clean and extremely comfortable - lovely beds and a everything you need in the kitchen. We would definitely recommend staying there. The only downside is that it's on the 3rd floor with no elevator .