c4 just like any other automation system is only as good as its designer, programmer, and installer. having said that, we have systems that are extremely stable and never hear from clients until we send them info on new items or updates. but then we do have some hiccup jobsites, which are very few. its electronics, things go bad. some cheap parts are great and last forever and some dont. be prepared to set up the system properly, if you live in an area that has lots of power outages, put your rack on a ups. if you have lots of quick brownouts put all your cable boxes on small ups. design is important. c4 has been solid,