Beware of Herschel Washington

beware of Herschel Washington. I sold a solo to him and over delivered 30% and he left me a bad review saying that he had only .05% optin... where my list averages about 30% to 55% optin rate... see some testimonials. I communicated with him and told him that people have replied to his solo email i sent to my list that they never got the confirmation sms that his capture page suppose to send out when someone optins with their phone number that there might be something wrong with his capture page. I also mentioned that I'm willing to work with him and even send him enough traffic to make him happy. Never got a response, just a bad rating... and still haven't replied my messages. just be careful when dealing with Herschel Washington.