When we relocated to a large city in NE Florida, we moved from a very small township in Ohio with 3 traffic lights and a volunteer fire department.
I was delighted to see that the house we were buying had a very good start with a monitored security system with fire alarms. I had the motion detector disabled from the system and I had alarms on every window and door, plus a wireless module so we can set it from our keychains. Also, any new modules that were added did not have to be wired.
Last year, I had a phone module installed so I can check the status and arm or disarm it from any touchtone phone, including my cell phone.
We had Ameritech Security Link until they were bought out by ADT, which is owned by Tyco. They are the largest alarm monitoring company and have been in business for at least 35 years, probably more.
I pay $26 a month for alarm and fire monitoring, and I just activated a $7 per month addition to pay for any service calls I might need, because I have some changes planned that will require some visits.
We set the alarm every time we leave the house and every night around 11 or 11:30pm, even when we have over night company.
Even though we haven't had any problems in the neighborhood, I like the secure feeling of knowing we're monitored.
Every 3 or 4 weeks, I set the audible alarm off on purpose to test it and also to make it obvious to anyone nearby that we have one installed.
I like having one and I read about advancements often to see if my system can be improved. I like the two button immediate call feature too, and thankfully have never had to use it.
I do know that the alarm company does call our number very quickly after the alarm goes off and they do ask for the password. They did send the police out once when we were out of town and my Mom came in to get something and didn't leave quickly enough after setting it. Somehow, she got the audible alarm to quit and then went outside before they called. Since no one answered the phone call, they sent the police out to check very soon after that.
hope that helps