Because I live in the East Bay, my regular dentist who practices in SF referred me to Dr. Gruell for 2 dental implants (a few years apart) because he told me he was the best in the bay area, and his success rate with implants was much higher than the implant dentists in SF to whom he had referred his patients who live in SF. In fact, Dr. Gruell has done implants for my dentist as well. My experience was fabulous. Dr. Gruell is very gentle. He explains the procedure thoroughly and prepares a treatment plan. His office staff were great. He did the surgeries on a Friday and had his RN follow-up with me on the weekend to see how I was doing after surgeries. I highly recommend this office!