I installed it as soon as I picked up my truck. I live in Houston, TX so I do not mind losing the remote start feature. The remote start feature is nice in the winter I am sure up north to warm up the truck before getting inside, but it never gets that cold down here. That being said it does get rather hot in the summer here. But I specifically got a white truck because after having a number of dark colors and black vehicles, I decided the Texas heat was just to unbearable for those colors. With a white vehicle, you notice a remarkable difference in the inside tempature. Plus I have also tinted the front windshield and sunroof as well as use a sunvisor during the summer. So I don't mind not having the remote start feature during the summer months either.
As far as the Ravelco kill switch. I install it on all of my vehicles. It is a proven product and it works. There are other kill switches out there and some of them are stealthier than the Ravelco. The Ravelco is installed in the open and there are stickers on both front door windshields. So, Ravelco, is out there as a deterrent to the professional thieves who when they see it is installed, they will ususally pass the vehicle by because it is not worth the hassel. As far as the theif that wants to break in and rifle through the center console or glove box? Well, I just installed a Lock'R'Down safe last weekend to lock up my valuables IE (Radar Detector, etc).