They were over 3 hours late for the 1st appointment. After agreeing to have 6 cameras installed at a price of approximately $175.00 a month the company rep setup an install date for the following Wednesday at 9 am. At around 12am on the Wednesday of the install no one had showed up for the install. I called Sentry and was told someone should have notified me earlier but my order had not been approved. No show, no call and they still have my money. I was told by the company rep on the day I placed the order that everything had been approved. She even used my office fax to send in the order. Once the order was sent in she got approval to setup the install date. They did not stand by there agreement and have now cost me a day of work because they did not show up.