Quality meets Function and Price
Not only are these nice biners, but they aren't going to break the bank. Snappy and tight fitting keylock gates on these means less fumbling with your gear while on your way up or down the route.
I've been enjoying these as my bolt-end biners and haven't noticed anything negative about them. They feel pretty darn good in your hand, but I'm more of a fan of the nitron's for my straight gates due to the gate being shaped differently with a bit more grip on the biner with overall less weight. For the price, these keylocks are really hard to beat.
The most comparable biner in size/shape that I own are the Mad-Rock ultra-tech biners, but the nose on these is MUCH nicer for cleaning. The positron has less of a 90 degree angle behind the keylock nose to eliminate snagging for a smoother clip or unclip.