Agree that Cosman's a little cranky but he describes himself as a "cranky old man," so it's all pretty benign. I've just had a very good experience with him and recommend him highly.
There's always a fear that any health practitioner, whether out of good or bad intentions, will hope you never get cured. Since I am not (nor have I ever been) an annuity, that's not an attitude that I want to see.
I also don't like feeling like I'm being sold a bill of irrelevant goods. My previous experience with a chiropractor, in New York, left a very sour aftertaste when I realized he was less interested in healing my back than in pushing a very dubious (but exceptionally expensive) line of nutrition supplements. (I suspect that at best, they're no better than what Duane Reade sells under its house brand.)
Cosman passed on both counts. I just had my third and last appointment with him after I threw my back out two weekends ago. As he adjusted me today, he clucked that "it's a shame you got better so soon, I won't make much money off of you!" I really, really appreciated that: he was giving me the care I needed, but no more.
He also mentioned in our initial consultation that he has a company that makes orthotics for feet. I have a hugely expensive pair that my podiatrist had made for me a couple of years ago. Cosman suggested that I bring them in for comparison. I nodded, did nothing, and he never mentioned it again.
All in all, I'm feeling much better and I'm not too much the poorer for it, so that's about as good an endorsement I can think of.