On every trail, whether littered with technical descents, grinding climbs, or smooth rolling sections, Specialized's Command Post BlackLite lets you attack. It controls your seat height with the flick of a handlebar-mounted lever so you can maintain your flow at all times. There are three positions to choose from: up for climbing; down for jumping and steep descents; and a middle height when you need to pedal, but you want extra maneuverability too. The seatpost is sealed for reliability, and is controlled by a standard derailleur cable.
So some comment that is loses air while riding. I have never experienced that in the 12 months I have owned it. I would say of all the dropper posts i have owned this one has needed the least amount of maintenance of all of them. i would say yearly to pull it apart grease the internals and replace the seals. They are all bound to eventually have problems and lack of maintenance only makes this happen faster. The major advantages to this over other posts is the mechanical lock out. when other posts fail on the trail you are stuck with a post in the down position. With this post you can pull it up and lock it in one of the 3 positions and continue your ride.
Bottom LineYes, I would recommend this to a friend