This Nova chuck uses two levers for tightening and loosening, instead of a chuck key. That's a bit strange, requiring three hands when fixing pieces to the chuck. That's awkward, but not a bit deal.
It's extremely well made, sturdy, and precise.
I have purchased five sets of jaws for the chuck, making it more versatile. That makes the package a really nice accessory for the lathe.
Overall, it's a very nice product.