I've been using them for 2 years now, shot about 25K of those in .45 230grs RN. With a carefully assembled load, they can shoot better than I can and are perfectly suited for my needs (IPSC).
However, In a box of 500, at least 5 or 6 bullets have significant defects that make them unshootable. Also, 1 box over 20 (in my experience) comes with badly corroded bullets (lots of green copper oxide on the bullets). Also, most of those bullets aren't 100% clean and shiny (I'm quite picky about bullet cleaningness (sp?)) so I tumble the bullets for 30 minutes before loading them.
I've been using them in .44 Magnum too, but I'm about to drop them. The cannelure in the bullet is small, shallow and sometimes completly misplaced, so roll crimping is difficult at times.