horrible service- they NEVER answer the phone!!and when they call you back; there is no humanity on the other end, they are robots-their monitoring contract is for 5-10 years!!!! so if you are displeased or find a better deal, you are still locked in-their monitoring contract is a page full of fine print and completed one-sided (to their own benefit, of course)-in commercial applications: they charge you for the equipment, charge you for the installation, and somehow still own the equipment- you are still only leasing the equipment and do not have any control over it; and you can't use the same equipment to go to another provider-in commercial applications: they give you an estimate for installation, then you are charged a greatly increased charge (their proposals are open ended)