positive points: the apartment is newly renovated, everything was very new! The apartment perfectly accommodates 6 people. The location is also very good! you can do everything walking from there.
Negative point: one of the rooms smelled A LOT of cigarettes, very strong indeed. We notified the owner and, after a few hours, the solution was to change apartments, but the new apartment would have to be at another address. As we only stayed one day in Bilbao, it didn't make sense for us to have to interrupt our 1 day trip to go back to the apartment and move to another neighborhood, we would lose precious time on the trip. With that, our experience in this apartment was very bad. the couple who had to stay in the room that smelled of cigarettes couldn't sleep well, because the bed itself stank of cigarettes.
My recommendation to the owner: make sure the apartment is really clean for the next guests! after all that's why we pay an extra fee for cleaning