Every alarm I have ever had has been great. Always get a battery back up. I got the pager alarm on my Chevelle, its cool but if you got a false alarm then you get all amped up for nothing. I know with most newer cars and alarms they have a kill mode were if your alarm goes off the car wont start, which is great if they are trying to take your car. For under $200 you can get an alarm, battery backup,Kill mode,Keyless entry, and trunk pop. ITs well worth it. I have only had one of my cars broken in to and the alarm woke me up, and I was out the door with my 92-FS and a bat before they even got in the car.