So I ran into this product definitely randomly and now I LOVE it! Really! Sleek design, comfortable feel, very responsive, very easy to use. I've Ben through the Adonit series and they all scratches the display. Luckily I have screen protectors, so I just replaced the protector. The other problem Adonit has is that it's too expensive and too prone to failure. The disks break very easily and it's expensive to find the replacement. This product COMES WITH A REPLACEMENT DISK in itself and does not scratch the display. It's feels more responsive than the Adonit pro. I highly recommend this product.