My opinion is that they are quacks. The game is to get you in for the first visit and then hook you by telling you that your frame is out of wack and that you will need regular, routine adjustments to keep you in alignment. I went to one for two visits when I hurt my back over 35 years ago and all he did was make my back feel worse and my wallet feel lighter. Some people swear that they are helped by Chiropractors but I think it’s like religion……………….. Either you believe in it or you don’t. I’ve know more than my share of medical doctors over the years, many of which have been my neighbors…………….I have discussed this subject with many of them over the years and none had anything good to say about Chiropractors. Your mileage may vary. 🙂