I had a terrible stay at Sonder in Roma Norte, CDMX. They tried to scam me out of a refund with a fraudulent cancellation policy. My room was extremely stuffy and it was difficult to breath (there were no windows opening up to outside, only two in the bathroom that opened up into the hotel hallway). This also meant that other guests could see into the open windows while I was using the bathroom. I could hear my neighbours electric toothbrush through the walls.