I would highly recommend Vivint!
The representative that installed my service was very professional. He stopped to explain the equipment functionality so that I knew how to use the system. I have a camera doorbell and I wish the video loaded quicker. I have that same feedback from 5 years ago. Oh well.....
We love the technology that Vivant uses, and love that when we buy their equipment we own it. Most companies just let you rent their equipment.
Vivint’s system is top of the line and easy to use!