xplore xr-7025 in escalade

a professional alarm installer couldnt get this alarm to lock/unlock doors and arm/disarm correctly. i paid them $240 and they took it out, anyone know what they were doing wrong or have experience with this alarm: rockwood xplore xr-7025. the install was in 99 escalade, they had bypass module.

I have been installing alarms at a professional level for over six years now, as I'm sure many others here have too.  One lesson I learned very early in the game is that with something as complex as an alarm in today's cars, you have to use the best, most reliable systems available.  I have never even heard of Rockwood, except as a cheap spin-off amplifer sold at Pep Boys or the flea market, so I wouldn't be surprised if the system is either faulty, not equipped with enough output/programmable options to be fully compatible with your vehicle, or even has installation instructions that are hardly ledgible, due to a poor translation, which are all common traits of lower-end systems.  I promise you will have far better results if you buy a DEI system, or another name brand that is familiar with most installers and has good technical support, not to mention a lifetime warranty.  Good luck!!