It was just the worst experience for me in Airbnb. I strongly NOT recommend this bnb to you. The door is sophisticated to lock and open but I dont think this is the problem. The problem is this host is so rude to me when I failed to open it the first time when I come back at night. When you just try to fix it for the second time, it would just piss her off. For another day that I am not able to open the door, I was being cursed with dirty words that I cannot stand. I decided to check-out at the morning which is one day before original check-out because I cannot accept such a nonsense and rude behaviour. The host is very argumentative even if I decided to leave. It costed me to spend 200usd more because of this but I still think I cannot stay there for even one more night. Airbnb should aware of this!!! It was just a very unpleasant experience for me in Airbnb that is never happen before!!!