On May 20, 2008 I ordered 4units with 2 year service for each. The promotion at that time stated the units were FREE and each year service was $19.95...they cut me off and will only respond via "online chat"that "the units were $39.95 with 1 year free service"...they billed my credit card for $173 for 4 units !T hey claim I did not sign up for extra year. They refuse to acknowledge the second year.! They ran a fraudulent ad campaign! DO NOT BELIEVE THEIR ADS!!! The device works mostly ok, sometimes you need to disconnect & reconnect later) BUT ONLY PAY FOR ONE YEAR AT A TIME!!! read full review »