http://www.bbb.org/central-texas/business-reviews/burglar-alarm-systems-dealers-monitoring-and-service/protect-america-in-round-rock-tx-44024

http://search.complaints.com/search?btnG=Search%2BComplaints.com&output=xml_no_dtd&sort=date%253AD%253AL%253Ad1&client=complaints&oe=UTF-8&ie=UTF-8&proxystylesheet=complaints&site=complaints&q=protect+america&x=56&y=11

http://www.ripoffreport.com/Search/protect-america.aspx

You can easily change the search to any company on these sites. As for the specific reviews, they pretty much speak for themselves.

A couple of important tips on alarm systems:
1) Make sure you go cellular for monitoring – no phone line required, and none to cut.
2) Look for interactive services, like remote arming, email & text notifications, video, apps, etc. – the good companies have them, and they should cost a ton.
3) Go for the wireless sensors. They work, and you can install them easily yourself. Allows you to add on later, or even move the whole system with you.
4) Add fire monitoring – should be no extra charge on the monthly.

Good luck!