Update: I picked a hardwired system over wireless for a big house job in Scottsdale
The client wanted a full perimeter with 22 sensors and 4 glass breaks. I gave them the choice: a slick wireless setup that would take 2 days to install, or a full hardwire job that would need 4 days of fishing wire. They went with wireless for the speed, but I pushed back hard and told them to trust me on the hardwire. I spent a full week in that attic in 110 degree heat, but every sensor has been solid for 8 months now with zero false alarms. The wireless quote had a 5-year battery replacement plan that would have cost them more anyway. Has anyone else had to really fight a client on this choice and been glad you did?