Eric Cwrote a review of Petzl Spirit 3D Screw-Lock Carabiner on May 19, 2017
Familiarity: I've put it through the wringer
The Petzl Spirit screw-gate is by far one of my favorite pieces of gear on my harness. Just from holding it, you instantly notice how incredibly light it is despite being a standard size D locker. The spring tension feels amazingly crisp and snappy, inspiring confidence in its robust strength. This biner is super versatile, as I've used it for pretty much any purpose you would use a locker for. For instance, I've used this biner on a PAS, building anchors, belaying with a Gri-gri, etc.
One of my favorite things about Petzl screw-gates is the red marking on the gate when it is unscrewed, giving a good visual reminder to always screw down so you don't screw up!