I shoot the HD model and absolutely love it. I have no problems with it at all and it's very quiet and smooth.

PROS:
1. Full containment. Just nock the arrow and lock the rest up into place and forget it.
2. Doesn't drop on slow let-down after drawing and no need to hold anything on the rest to do the slow let-down.
3. Drops and locks down when shooting, so no bounce back issues.
4. Doesn't hit my riser shelf when it drops.
5. Very quiet, even when locking it into place.

CONS:
1. I wish the plastic pieces were metal, but it's easy to replace them and I got spare parts in my box when I bought it incase they ever did break. I don't mind the trade off for the performance it puts out.