Might be a rare occurrence but just telling my experience.
Very bad experience for my old parents(from India) visiting Vegas for the first time. One thing which my mom wanted to see was the Fountain of Bellagio and they missed it due to time wasted at check in. I don’t know if they will ever be able to visit Vegas again. I had to book another hotel room at a short notice instead of wasting time waiting for an unresponsive host at a hotel lobby.