While the apartment itself was beautiful and clean and the location was perfect for exploring Athens, we had one issue which overshadowed all of the good parts. The lock on our door broke - leaving us stranded outside the apartment. When we finally got through to Olala (whose base is in a different country) they at first acted as if I just didn't know how to use the app. Once I insisted that the lock was actually broken they did send someone, but they couldn't get in. I finally had to crawl in a window to gain access. And then we had to wait up for a locksmith who didn't come. The next morning we didn't want to leave the apartment until we knew the locksmith would come otherwise we would be locked out again. The host in Greece was very apologetic, but the stress of not knowing if we would get back in or get in touch (with expensive roaming fees) with Olala ruined what would have been a great stay.