I have the clifford Matrix 2.5x and the Viper 800esp. I like the clifford much better than the viper. The clifford has never gone off just randomly where my viper does every not and then. Ive had the clifford for about a year and the viper for about 5 years in multiple cars. I like them both, just have had less problems out of the clifford. Either way they are both great alarms.

_______________________________________
The end of the internet begins here... www.broke-off.com