Great location, a nice apartment, and totally comfortable place. Unfortunately besides the communication was good, sadly their online unlock / lock system doors didn't work properly when we arrived to the apartment and they made us wait 40 mins at the door for the check-in and the worst thing was than across the whole stay of 4 days it didn't work properly! Sometimes works, and sometimes not. We've also requested two pairs of keys and they just gave us one. Never apologized and their excuse was that yep, "online services sometimes fail". I can understand "sometimes", no one has the fault more than the app service, but don't you think that after waiting for 40 mins to solve the problem, at least someone can call to say sorry? And how I can feel after you made me wait for 40 mins and you forgot to bring a second pair of keys? And how I must to feel after I finished my stay in your apartment and finally I've never count with that second pair of keys? You need to improve it. That's all.