Not too bad. Not as good as Tech Friends though. Maybe they've changed them since I've bought them, but over the years mine have become rather stiff. It doesn't impede the use of them at all though. One has become bent and refuses to straiten out (the cables). Not a big deal unless your going for a long reach or tight placement. Hasn't affected safety or usability. An open loop sling would be nice. They havn't let me down yet.

good old basic 4-lobe U-shaped cam. Great in the small sizes, good smooth caming action .. nothing fancy to set them apart.

Maybe the first time I agree with dynoguy on anything (though I dont bother post when I disagree). These make me feel safe. I have these, rigid friends and camalots, but have climbed with almost everything that came out more than 3 years ago. These have a nice smooth action and a solid feel. Trigger design is a personal thing, but I find these a lot easier to hold, position and place than the camalots and friends. They do definitely get less beautiful after a serious fall - it is necessary to straighten them carefully if you want them to work properly.
I would recommend these and aliens as the small cams of choice but in large sizes I like camalots better. One more thing - I was able to wrap a bit of accessory cord around the trigger and make a nice little extended loop that helps to retrieve them from even the deepest placements. You can do this for most U-stem cams in a fairly nice way but it is hard for some other designs.

Although expensive, these cams are super smooth and feel really really safe to me. I have tremendous faith in placing these and climbing above them. I'm gradually building a rack of these babies!