awesome for my limilted experience
Admittedly, I've only used this screw, but was super pleased with the sets. It's easy to start and the crank is manageable even with my goliath BD Guide gloves on. They have two hangers, which provides some options for anchoring and setting up a pulley.
haven't had any issues with dulling or weight yet, but the screws were well maintained by the time I got hold of them.