Other than the auto unlock, what's the point?
Our cars have remote start, door unlock/lock and trunk release from the key.
and you can unlock and remote start from an iphone with the onstar app.
So why mess with a system that already works to have auto unlocks? Doesn't seem worth it to me, but to each their own!
If you go for it, I'd be interested to see your review, both short and long term.