I am the lead instructor and a life long shooter (shooting since age 9, now age 40). I have performed several of these defensive pistol classes since 2014. Facebook page is 4.2 stars with very good reviews, and Google is 5 stars. You'll notice any of the negative reviews on Facebook are from out of state people who never took any classes from Alpha Koncepts. I believe my page was targeted by anti gunners several years ago.
http://www.alphakoncepts.com/about-alpha-koncepts/
https://www.facebook.com/alphakoncepts/reviews/