I visited Dr. Sonder the first time over 4 years ago while dealing with awful pinched nerves during pregnancy. I have returned to his office numerous times since then with a variety of small spinal issues. He always answers my questions clearly, treats me with a great deal of respect, and diagnoses issues accurately every time! I have had 4 different chiropractors in the last 15 years due to moving around the state. I feel that Dr. Sonder is the best! I trust him, and would refer him to anyone seeking chiropractic care in the Grand Rapids area.