This is my first foray into metal picks. Since I have no real point of comparison, I'm not sure what would really differentiate these from other metal picks. They're much thinner than what I am used to, but just as rigid (I like thick picks). I'm not a "heavy"picker so I can't see that they're causing any undue wear on my strings. I kind of LIKE the attack that I'm hearing from them. They're much less expensive than other brands, so I guess that's really their key selling point.
If you're curious about metal picks (or already love them), these are definitely the place to start!