Rhyno, no idea if they might last longer. I THINK they might but who knows?
As far as smooth, yes...They are smooth, quiet and progressive.
Bang for buck? I paid 199.00 for mine, so yes. At 699.00, or whatever, I dont think you could justify it, but they are amazing. I suppose if you were forced to buy rotors anyway, for sure this is what I would buy.
The OEM rotors on my C14 became too thin after about 55,000 miles. I replaced with EBC simply for price. The EBC's are thicker than the OEM and I assume might last longer. But they don't feel as linear as the OEM's. I don't like how Kawi linked the brakes but I do think the front OEM brakes are pretty damn good.