I really only came across a cardiologist and service staff here, but everything was perfect!
The cardiologist does not just "leave the room" but treats the client thoughtfully, and the young ladies at the reception are quite polite and prudent, as a last resort I forgot to pay for the visit - they got through, did not yell, but politely reminded, billed remotely!
This is a rare case , both in a medical company and among the service sector !