I am a customer there and was always treated to my full satisfaction. 2 crowns for 16 000 Baht, no problems. The Thai dentist makes the work, and before the crowns are set or before everything comes to an end, the owner comes over for a quality control.
The owner, Michael Schlatter, is German. Not a dentist, but a dental technician. Therefore, he has Thai dentists working for him. He has his own dental laboratory in the building. They work only monday thru thursday.