Locks at the door was an absolute nightmare, had to try for like 5 minutes every time we had to lock or open the door. Not a big deal but would be nice to have an easier system.
We stayed at the beginning of May for a few nights during our visit to Cappadocia. The hotel rooms are cave-style, even though they are not carved inside the rock as it might look on the pictures, so just be aware of that to avoid disappointment.
However, rooms and bathroom are MASSIVE, with plenty of space, all kind of facilities and shiny clean. Staff were reserved but very helpful, they even allowed us to check in a couple of hours early as soon as the room was ready, which was much appreciated after a 10h overnight bus ride. Would happily recommend it to anyone!