That sucks Chuck. What happened? They have done a fantastic job on my alarm, and have upgraded and tinkered with it to my liking for free every time. The Good Guys did great work on my X as well. But I had their best installer working on it. Most of the others I wouldn't trust.
Stereowherehouse destroyed my dash, shift knob, paneling and incorectly installed an amp so that it blew.
Innovative is great. They'll do custom work like no other, but you will definetly pay the price. The charged my friend $1500 for a Clifford Avantgaurd 4 alarm, with a few up grades. You could get that off ebay for less than $500.
I tend to believe that the Eastside has more professional installers and knowledge.
I was out at Stereotonomy the other day, when an X drove by. The installers just looked in disbelief at it. They said that CarToys installed the system, and mounted a cap upside down. The cap then blew and the guy had a tank of butane in the back. His X blew up while he was on the freeway.

CarToys not only had to pay, but for Inovative to do the new installations.