They look cool and they havent cracked (yet). Drilled + slotted are notorious for this, especially DBA but i decided to try my luck. Will update later if they crack.
I paired them with Hawk HPS 5.0. after bedding in after + a couple weeks of driving, I can only tell about a 10-15% increase in braking power. same initial bite as oem, but these do a bit better throughout the mid range and more harsh braking. Im sure you could use a more aggressive pad and get better results, but this is my daily driver not a track specific car.
summary: they look cool but are not worth the cost for marginal increase in braking power over stock. Will see how long it takes for them to start cracking.