Beware of strong sales tactics. A salesman came to our door and badgered my wife. Although we had an existing alarm system, he said APX was better because of its wireless phone connection. He wanted her to try it for 3 days to see how she likes it. She told him she had to wait for me to get home to make a decision. In the meantime, two installers came in and began work. They removed the old system and installed their own. They promised to put the old system back if we didn't like theirs. When I got home I got to the facts. If we... read full review »