I purchased one of their Charge-Max 1500 Boosters and a 1500 Controller on ebay. The Booster was defective right out of the box. When I emailed them about it back in August they promised me a new 3000 as a replacement so I mailed them mine back. I have not received it as of this date (11-09-2007) and they are ignoring my constant emails.
The charge controller limits the charge available from my panels whatever I do and I have currently bypassed it until I get another controller.
Let those who have ears listen...