I purchased the Wahl Ultimate Competition blade in a #10, and let me just say, wow. It's already stayed sharper than my other blades but not only that, it stays cooler, which is perfect for the more sensitive areas that really don't want a warm blade. The size of the blade is perfect for faces, ears, and legs, unlike the blade that I have been using (Andis T-84), and I really can't recommend it enough!
Totally satisfied with purchase and professional handling of my return and reorder. Will recommend Corro to friends and family.