I am using the one Verizon sells for it (came in a 3-pack). It has no bubbles, doesn't move, reacts well, looks clear, and I don't notice it is even there. I haven't needed to replace it yet, after a month of it coming in and out of my pocket.
Yea, I also ordered that 3 pack with mine. It is the same material they sold for the DARE - and works great in saving your screen from scratches and such. $14.99 for 3 pack online ... Haven't been to the VZN store yet to see the prices in-store.