We aren’t saying it’s bad just because it’s EST, EST has its own issues. Lots of people think that their SIGA protocol is buggy, and the panels aren’t very high quality. I know plenty of people that have or had an EST FireShield, and most of them are busted one way or another. My friend who owns an EST 3 complains that the front keypad is very low quality, and he said the whole front bends while pressing buttons. That’s something my MS-2 does 
EST addressable devices are also not very good for collectors because you need the original devices.