Alex's house is right in the middle of one of the youngest part of Oslo; anyway it's a very quiet street and you won't ear anything from the pubs nearby.
Moreover, you'll take maximum 20 minutes walk to reach the Central Station and therefore the City Center. So, I must say that is very comfortable.
Alex is very kind, he waited for me even though my plane landed pretty late and quickly explained me everything about the house.
My single bed room was essential but clean; I was in Oslo mainly for work purpose and I was out almost all day, so it simply had what I was looking for and it was perfect for me.