Here's kind of a response but yet not an answer. There must be something OK with them since they sure sell the heck out of them. Ive been to war on one of their systems that I sold and installed and the designer from Great Britain himself couldn't straighten the damn thing out. Odd that he was in the states and available to take a crack at it himself at the time. Yup I hate them for the pain and big bucks that system set me back.
"The Bitterness of poor quality remains long after the sweetness of low price is forgotten"