Well, I've heard it said that "real men don't use capos." Maybe that comment means to say that real guitar players don't use capos. Well, have you ever seen Keith Richards play "Jumping Jack Flash?"
If I'm not mistaken, and I'm not, you'll see a capo on the 4th fret of his famous Micawber 5 string Open G tuned Telecaster guitar. Could this possibly be one of the most famous guitars in the world? One of the most famous guitar players?
So as a neophyte, who set out to learn Stones songs, I found I needed a capo. I started buying one here, one there, another, and another. They all seemed to work ok. Then one day while innocently visiting Facebook, a saw an ad for Thalia Capos. Frankly, I clicked on the ad because I thought the capo was kinda cool looking and my curiosity got the best of me. So I visited their site, and bought one. The damn thing was incredible, especially compared to other capos. But they have options. Pretty soon I had another, then one with my name inscribed in mother of pearl. Who cares that it cost $150. The damn thing is cool. It's cool to look at, and even cooler to actually use. They come with inserts to adapt to a variety of neck shapes and fret boards. I use a special insert when I capo my 12 string acoustic or 12 string electric.
You can move them around with one hand, something that is next to impossible with other capos. I've seen people move them during a song, altho I would probably not do that. I think one needs to re-tune after installing ANY capo. But that's just me.
I highly recommend them. Here's a link to their site.