I booked through this app at a hotel. When I sat on the bed I looked down and there was semen stains all over the comforter making it crusty. I went to the front desk and they told me they'd give me a refund and change my room with no problem. When I contacted hopper they kept disapproving my request for a refund. And had me calling the hotel over and over again to figure it out when I called the hotel they told me it was disapproves on hoppers side. I'm disgusted/will no longer use this app