Sorry, but I do not hold a lot of confidence in what sales reps say. Are there some people you can talk to directly that had treatment there that may be more independent? Also, I did take a look at the list and honestly can say there is at least one company that stands out to me on there that is a definite NO unless you just want to throw $25K away. Buyer beware is my best advice. Good luck to you. If you go through with the ozone treatment, I would love to hear back from you to get your feedback as I have just never heard of anyone that truly had it do anything for them. Everyone is different however.