We moved to Frisco 11 years ago. Looked at several security companies and orginally went with Brinks. A year later a neighbor told us about Smith-Thompson. No contracts and a set rate! The cost was about a third of what we were paying with Brinks. When our contract was up, we gave S-T a try and have NEVER looked back.
Pros: Reliable and affordable
Cons: Haven't found any
more