I've been doing my own home automation since the early days of X-10 ('70's). I've experienced the growing pains of several home automation schemes X-10, Insteon, 1st generation Iris, and now second generation Iris (Lowe's). It's sad that it's 2017 and nobody has completely solved this problem yet as there is a real need out there. I have two homes that are now fully Iris controlled, and monitored. Lowe's screwed this up initially when they dumped their relatively mature gen 1 system and converted everybody to an immature gen 2 system. This is only recently becoming pretty robust and well integrated and may succeed in spite of Lowe's feeble attempts at managing it. They still need work on their user interface but have smartphone/tablet apps as well as a web interface (still needs work). This system allows integration of all sorts of sensors (smoke, CO, flood, motion, temp, power, door/window, garage door, etc.) with lights, light and appliance switches, outlets, locks, thermostats, cameras, key fobs, smart buttons, blinds/shade controllers, pet doors, whole house water shutoffs, sprinkler systems, etc. It also works with Alexa. It's the most complete set of components I've seen integrated yet and still growing. It also has Verizon wireless and battery backup. The app interface needs a lot of human factors work and is very bland and sometimes slow to launch which makes the use of separate physical Iris wall switches and smart buttons good for (programmable) control of items without using the app. If Sense were able to read device interactions (there is a third party that has created an app to do so), then it would vastly improve Sense knowledge of what is going on in the house for detecting such thinks as lights as mentioned above.