I've gotten into the habit of double tapping the unlock and rolling the windows down a bit on cold mornings. Sometimes it takes a couple tries before they actually move, but after I saw the flex when I tried to open one frozen I figured it's worth it. Unfortunately I'm 2.3/MT so no remote start...
Install was super easy. Once you swap out the spark plugs the module itself is basically just disconnecting and reconnecting a couple pigtails. Still no app but you can change the tunes on the module itself.