Since when is it not allowed to tell about negative experiences with a Lee CFCD?
I tried it, and it did not work well. It is certainly NOT superior to the vast majority of crimp dies. The only time it 'finishes' the cartridge is if non-uniform length cases caused buckling, which it will "iron out". The resulting cartridges will chamber and fire, but accuracy cannot be helped by that. The better solution is to ensure that case lengths are uniform in the first place. I get better quality, more uniform crimps from my Hornady 45 colt seater die, while seating the bullet no less. My CFCD left a very rough, scraped outer surface of the rolled case mouth, which was not even completely rolled inward. It was as if the ID of the crimping lip was too large, letting the case mouth "slip under it" rather than completing the roll into the canelure. I have seen that exact same appearance on gun show reloads, and they told me they used the Lee CFCD, so I don't think my experience was unique.
If I understand it correctly, the Redding Profile Crimp die first removes any flare on the case mouth with a tapered section that leads up to the lip that rolls the case mouth inward. And as mentioned, fit and finish are quite good, inside and out.
Andy