Friendly yes, like a used car salesman friendly, Charged me thousands for implants & broke the implant off in my jaw bone! For the rest of my life, I will have his failed attempt at doing his mini implants on me. All He could say to me, was, it was my fault for having such a hard dam* jaw bone. GET IT ! HE FAILED, and its my bone that is the problem. He left me with a semi worthless upper partial plate and a completely useless bottom plate, made to hold his implants. Since he couldn't place the dental implants because of my too dam* hard bone. (MY BIG MISTAKE WAS AGREEING TO PAY HIM IN FULL UP FRONT.) HE ONLY partially refunded me for the other implants that he had not broken off in my jaw. I demanded a full refund, Since I have dentures that are worthless without the implants. "HE SAID SUE ME". The pain and damage was considerable to my jaw bone. It took me another year to heal and too save up enough money to get new implants from another dentist. 5 plus yrs later my new mini implants are still working great, no thanks to my nightmare dentist. Dr. Guy Chisteckoff and his gift of broken and embedded metal in my jaw bone that will be there for life.