Just to give a differing view, I had bad luck with my Craftsman Pro Screwdrivers (Red/Black ones). I had two Phillips tips practically disintegrate with just mild use. They were both from the same set so it is very possible it was just a bad batch. After I ruined those two, I purchased a Williams set and that is now my go-to set. The CMPro set, including the warranty replacements, were relegated to the trunk tool set. So I can't say whether the replacements are of better quality and mine were just anomalies. It was disappointing, since I had bought the CMPros specifically because I wanted "good" screwdriver set.
Given the number of positive reviews, I'm inclined to think I was just unlucky. I usually don't give Craftsman the benefit of the doubt nowadays, but lots of folks like these. But just as a data point, not everybody has been satisfied with these screwdrivers.