R1 concepts rotors

has anyone heard of or used the R1 concept rotors? I need new brake pads and rotors...I have a free replacement on my Raybestos so i Just need rotors

search here and 3si, ebay rotors have been discussed ALOT. At first I got these confused with iRotors. Honestly, not too sure about these. Seems a few people think htey look alright, but nothing really compellingly great about them. There are alot of Brembo blanks floating around on ebay...they are alright. The problem is when companies start cross-drilling them and whatnot, with little to no reguard on structural placement or even added braking performance...but just for looks. I personally would stick with vented blanks...just my .02

They are brought up a few times in this thread (http://www.3si.org/forum/showthread.php?t=307538&page=1&pp=10&highlight=r1concept+rotors)