I bought this capo as a replacement for my Dunlop Trigger Capo, because I wanted a capo that I can easily attach and remove with one hand.
It's very easy to use with one hand and you can apply just the right amount of pressure to make it buzz-free, while not bending the strings too much to keep the guitar in tune.
(I always handle the Dunlop capo with two hands, because it sometimes flips sideways out of my hand when pinching it open.)
The ART mechanism works well, the capo is buzz-free on both my acoustic and fender strat.
I highly recommend this capo.