SLClimberwrote a review of Edelrid Bulletproof Quickdraw on February 27, 2018
Familiarity: I've used it several times
Lightweight, easy to clip, and by far the most durable biner/draw on the market. Barely noticeable weight difference and seriously more durable!
In addition to the fact that the steel plates won't wear down or groove out like other aluminum biners, they keep your rope cleaner too! A good deal of what makes your rope get dirty over time, (and what turns your hands black after a belay )is the anodized coating wearing off as the rope moves through. This doesn't happen with the steel plate. I've noticed that my rope doesn't get dirty nearly as quickly since I've been using these while sport climbing.
Seriously, this is yet another genius engineering innovation from Edelrid. Can't believe how light they are and how long they have lasted!