Robin's hostel is a comfy place right in the center of Tromsö! Everything is within a walking distance. Perfect for example for a day hiker. The hostel also arranges tours to go see the northern lights, which I did not have time to do unfortunately.
It is also the cheapest hostel in town, though you get what you pay for. All in all the place is nice and tidy, but there are no lockable drawers, the shower was quite cramped and not so clean. In my room the window was broken so I could hear all the noise from the street. The kitchen has everything a traveller would need. The beds were a bit uncomfortable since they are a very soft mattress on a wooden base. Entrance to the hostel is very simple, just use a door code provided by the hosts. Wifi barely worked for me, since the router seems to be in only one of the houses, so the coverage was not enough for the other house.
The place has a very friendly atmosphere and it is a good place to meet other travelers! Check-in was very simple, and the hosts friendly and welcoming! For a budget traveller this place is the choice! If you come by car, be sure to check a good parking spot, since around the hostel parking is very limited.