The device keeps things simple while monitoring the status of the garage door. I like to have a professional look to installation of any devices or other work in my home, so I would have preferred a different style connector to make dropping the wire through the wall easier instead of snaking it up the wall and working backwards. I recommend adding screws to the installation of the magnet and wired switch to ensure either does not fall off over time...either by being knocked or the adhesive giving way. Since the device is binary logic -- door is opened or closed -- opened thus initiating the countdown timer, if the magnet is displaced then the Butler will go rogue and cycle a series of opening and closing at the interval chosen. This occurred just last week in the early morning when my wife left. She closed the door just before the Butler was about to close it... this stopped the door mid cycle, then the interval ran out and the Butler completed opening the door, the interval then ran out again and the door successfully closed. As much as I feel the piezo buzzer is way too loud, when I was able to hear it (from the back of the house) repeatedly alert, I knew something was out of synch and I had a potential risk--the door still being open. Overall this is a handy device to add additional security to a complete package of security cameras, alarm system, and series of timers for automation.