I am very pleased with the Ace and the Pirate ball marker. I have several more valuable and more collectible knives, but this has become my favorite EDC. The flipping action is very smooth and quick. The quality is obvious. Lockup is very nice with no wobble. If there is anything negative about this knife is that it is a little heavier than I would have liked. The weight is due to the solid construction. I highly recommend this knife.