Something was wrong with the system, and our reservation was lost. So I got a phone call, a day before our arrival, after I texted them, that we didn't get the codes to get inside, saying that there was some trouble. The lady who I spoke with seemed very nice, she said she is sorry and offered our money back or another room with four beds. And since it was very last minute and I was scared we wont really find another place to stay, I went with the room... Unfortunately, she forgot to mention, that the other room has no window, no heating and kinda looks like a prison cell.
But, I do have to say, It is very close to the center, and can reach everything by foot. Finding the place and getting in was really easy.