Yes, I have, it's good. But I feel it only really comes to life - 'looks right' - on a kitted car. With the more angular pieces and higher props it works well with the arch vents and A style rear diffuser styling.
I like the Nismo one as I think it will still look good on an OEM paneled car.
Basically it will look more aggressive without giving it too much of an aftermarket look, almost pass for OEM if you will.
LOL - Yeah, I've had a few different Seibon bits in the past mind, all very good to be honest, a bonnet and spoiler to be precise.
To be honest, the Seibon carbon one is currently looking like the winner, I'll just have to paint it .