My sister and I had a good time in Niko's place. The place was clean, check-in was great ans the location was good. I think it's important to have in mind that the apartament is at the 4th floor and there's no elevator. By the time we were there, there was a construction happening in the common areas, and because of that, we had no electricity for a few hours, and the stairs were full of dust, there was also a lot of noise. It's also important to explain that the place is about 15 min by tram from the Old Town Square, Castle and the other main touristic places.
But we enjoyed our time there.