Well, it's a cool material, and it makes you feel like you're in better control when you're playing. The thing I'm not sure about yet is that it gives me a little sharper tone than I'm used to. Maybe I can file down one side of the pick myself to get it a rounder shape and a "rounder" sound.
Edit:
The more I play with it, the more I like it! I really think the guitar is easier to play with this pick. On my '51, it sounded a bit bright, but on the Tele, it's the cat's jammies!