I use it for a year and a half.
Most: stability, speed of use, no adjustment according to the model of guitar, sober (not a big thing as some ....)
Cons: weight, that it "slip" in hand, the price.
I have not tried tons of capos, I just wanted to have one that works at last!
I would definitely do it again this election. It is a bit expensive, but probably the cost of efficiency!

NB: a funny and interesting technique: When not in use, place the G7th on the head of your guitar, it extends quite sustain!

EDIT: I would add that fits all my guitars brilliantly: strato, les paul, folk ...