Alright, but there are better options.
The first thing I thought when I got my yellow c3 out of the box was "wow, this is an incredible piece of engineering." I still think that, but after having placed it a few times, I find that I'd almost always rather go with my friend's red WC Zero. The cam lobes are great with how close together they are, but that also makes them less stable, which scares me a bit. While I would say that if you have a big rack, and you have the money, it might not be a bad idea to have a couple of these guys for awkward placements, your money would be much better spent on a set of 4-cam micro cams. I love the zeros, but the master cams are pretty stinking awesome as well.