Due to privacy regulations, I would advice the landlord to explicitly inform guests about the video camera inside the studio and ask for their consent. After years staying at dozens of accommodations around the world this was the first time I saw a camera pointing directly to the bed, and surprisingly, I was not informed about it (it is also hard to see and it does not appear on the pictures of the apartment). Naturally, I don't approve recordings of my private life. There are other ways to guarantee the guest's safety without compromising their privacy. Communication with the landlord started distant in comparison with previous experiences, that said, he was always clear with the general instructions (not about the camera) and incredibly flexible regarding both the check-in and check-out. The studio has everything one needs for a pleasant stay. Its location is prime: the studio is located in the middle of most landmarks and it is surrounded by some of the best connected metro and cercanías stations.