While we had booked our stat in Oliver's place on 8th January 2018, on 11th September, 3 days before we were due to arrive, he told us he had a double booking and shifted us to another apartment. As it was the weekend of the Berlin marathon, which is a very crowded weekend in Berlin, we could not afford to question this practice and simply had to take the other apartment offered about which we had only a little information. The other apartment was OK but the shower was really terrible - hand held in a bathtub with no shower curtain, and yet it was not a wet room, so impossible to avoid flooding the bathroom every time you tried to wash. Not ideal when you are in town for a major sporting event. I do not know how a double booking could have happened or why my reservation made 9 months before was not honoured over some mistake and double booking.