I haven’t met the owner, Nuria. She speaks English. The man she sent to give me the keys, doesn’t understand English and doesn’t speak a good English.
There are no windows except for one at the entrance, and some little light coming from the opaque “window” on the kitchen ceiling.
In the place dedicated to the guest there is entirely no light.
It has to be communicated if there are difficulties with opening the lock of the entrance door to the flat. My key did not open it, I had to wait 40 minutes until the man, (who should have explained me earlier how it opens) came, and opened it.