Never trust Only-Apartments. They'll rent you an apartment they don't have. They charge for services, but they do not take responsibility. And they do not answer complaints properly. Check Trustpilot, Tripadvisor or Complaints Board and you'll find stories like ours – only we did not know. In January we rented an apartment with terrace in the Monti district in Central Rome, confirmed January 21. But one week ahead of our rental date (May 22) we were informed by the owner that the flat has been rented out through AirBnB. "I'm afraid there was a mistake in the Only-Ap reservation system", he said. Shock! Only-AP had no real regrets, however. Five days before departure we received an email saying only: "Unfortunately, we have just been informed by the owner that the apartment is no longer available". – But how on earth can they charge us in January for something where they don't have a clear contract? They offered us a different apartment – way out on the other side of the Tiber River. I told them we were going on two criteria: With terrace. In Monti. Some mails later we were informed that "We don't have other available apartments in Monti with terrace for the same price". No, but I would expect a decent service to say: If we COULD find an available apartment in Monti, with terrace, we would of course accept our responsibilities towards clients and make up for additional costs, if necessary. Actually, we did find another apartment, in Monti, with terrace – and we found it on the Only-Ap site! It was even in the same Via Leonina Street as the first one, so we hurried to book it. It was larger (but we still liked the first one better), and 50 percent more expensive. I sent them a letter on immediately (May 18) asking them to act responsibly and take at least half of our additional payment, i.e. 192 euro. They did not even answer. It took me four sharp mails to wake them up. Finally, May 30, they offered a next-to-nothing compensation: A 10 percent discount, if we make still another rental with them - within the next three months! But who can trust a company that rents out apartments they don't have and won't take any responsibility for the mistakes they make?