This is a nice seatpost, it does take time to get the correct seat angle with the one bolt adjustment. Once set it does not move.
While the post is carbon, the rather large set-back bolt clamping plate area is very heavy and cheap. Also its annoying that there are no degree angle lines, you will need your own level for that. I cannot speak for the vibration dampening properties as this is on a new ongoing bike build. I would spend more money and buy another if I had it to do over again.