It's an excellent capo, I'm just more into down-tuning these days.

Works perfectly- only some tiny surface dings on the top and bottom (pictured)

From the official description:
In the world of capos, the G7th Performance 3 ART capo stands out in the crowd. This brilliantly designed, innovative capo represents years of research and design strategy. With G7th's patented Adaptive Radius Technology, the Performance 3 ART capo actually adapts to the unique radius of your guitar, eliminating the two most common issues that arise with capos: fret buzz from too-little tension and strings that are bent sharp from too much tension. This beautiful hand-polished steel capo features an easy squeeze-to-release mechanism that lets you slide it up and down the neck quickly.