1) It has an almost knurled surface which grips the seatube and clamp, thus it requires less clamping pressure to keep from slipping. 2) For alloy post its really quite light. 3) The microadjustment actually microadjusts. 4) Broad seat rail clamp that is suitable for either carbon or alloy rails. 5) Super strong and will virtually never fail. I've NEVER heard from anyone breaking this post. 6) It doesn't fly into a dozen pieces when you try to mount your saddle. 7) Low profile mount so it fits any saddle.
I think Alan said he's posting one in the classifieds. Not cheap, but worth it - especially if you are using alot of extension on the post. Make sure your seattube size - many Alloy and Carbon frames use 31.6 mm seatpost. Older bikes tend to use smaller seatpost diameter. Also - the Elite comes in setback and non-setback style. If you have a smaller frame with tight reach - then the setback is great. Gives you a ton of adjustment potential.