I don't know anyone who has installed one yet.
One thing that concerns me is my dealer shop foreman told me he may not be able to program it via the DCS system (or whatever its called). He's not sure the option is there for the US 2010 cars since the alarm software is factory loaded now. He's willing to try, but told me I may be SOL.
I haven't bought the kit yet because I'm waiting on a couple other forum posters to report back their results. I know of one who is still waiting for his kit to arrive from Europe.