There isn't a bad thing that I can say. The service 22 years ago was cutting edge and were expected to last 10 years. They have lasted until now. My implants were so difficult that a Flint implant clinic advised me to go to Dr. Feuer. He said that one side (total of two implants) was like driving a semi down an alley. I can only recommend him highly. Thank you, Dr. Feuer.