Bests & Worsts Reviews from Amazon

This unit is constantly losing connectivity with its connected sensors, even if it's right next to them (I moved them all to be together for several days to test this). In addition to the complete loss of being able to know when there's O2/Fire, the hub only notifies you of a loss in connection at around 2 am the next morning, regardless of when it lost the connection. This is a super annoying series of beeps that continues until you get out of bed, put in your code, and tap through all the menus to tell the hub to "ignore the problem." No matter how many times you do this, this exercise is repeated several nights a week. You also cannot change the time or date on the device unless you have an ADT professional install it (what??). I finally sent it back and got the combination Samsung Smart Things hub and Nest solution which was way less expensive, way easier to set up, way nicer-looking and is way more reliable.