1. High brand recognition: Penglong Star is an authorized sales service center of Mercedes-Benz, representing the recognition and qualification of Mercedes-Benz brand.
2. Superior hardware facilities: As a 4S shop, Penglong Star should have perfect hardware facilities, including exhibition hall, maintenance area, spare parts inventory, etc., to provide customers with a comfortable and convenient environment.
3. The professional level of technical service is high: the maintenance technicians of Penglong Star should be trained and certified by Mercedes-Benz, and have rich maintenance experience and professional knowledge.
4. Perfect after-sales service: After-sales service is an important factor for consumers to consider. Penglong Star should provide high-quality after-sales service, including regular maintenance, warranty policy and fault maintenance.
5. Good customer reputation: You can find out others' comments and experiences on Penglong Star by searching online or consulting people around you, thus helping you to make a more accurate judgment.
For the specific service quality, I suggest you go to Penglong Star in person or communicate with the owners who have already bought Mercedes-Benz cars to get more accurate information.