Most drivers are honest and excellent but we had a ride from Philadelphia train station where we waited for the driver and we tipped him when we received the receipt we were charged an at extra charge indicating the driver had to wait for us! We were waiting in the section where he was and as soon as he pulled up we jumped right in. In the future we will never tip again until after receiving the receipt and know that the charges are correct. Also we were not able to contact Uber to complain