This pick is a good spice you can add to your playing, especially on acoustic: it gives you a nice bright tone you just cannot get with a standard plastic pick. I think the tip could be a little bit pointier to increase the "bright" factor and also to make it easier for the pick to glide across the strings.I suggest you to avoid picking really hard with it as you might end up shredding the strings or you might get your pickups dirty because of all the magnetic string powder. I'm mainly an electric player and these will never be my main picks but having one around will surely give you one more tool to get certain sounds you might be looking for.
i cant say if i like these pics but i have to say that i was surprised by them the tone is surprisingly soft compared to a plastic pic which has more attack i am not sure if they will have a negative effect to the durability of my strings (metal on metal), if yes, i don't like them, if not i have to get used to them. they have no marks and when you get different gauges you have to feel the gauge or mark them by yourself (dremel or whatever will help you) anyway they are pretty and do work. oh not to forget, the prig also did surprise me, its a good grip even if its a smooth surface