I put a remote starter in a 2010 Imfiniti M35x over the weekend. I spent some time driving it too. It is a sweet ride. I was kinda on the fence about them beforehand. It has a price tag to go with it, though (50K +). There are some used ones out there with more reasonable prices.
I have an '04 Limited that I plan on selling soon. Only 58k on it. Inferno red, AWD, V8, Leather, etc, etc.
PM me if interested.