Not really sure to be honest..It looks really cool!!

I know carbon is supposed to help soak up road buzz, and on that note, I can say that it( my carbon seatpost) must do a good job, because I haven't noticed the rough ride Aluminum is supposed to deliver. However, I also have a seat with Ti rails, so that may make a difference also.

I didn't buy a carbon post aftermarket, it came on the bike, so I don't think it's a really high quality post, or lighter than any other post. Either way, I ride in fear that the thing is going to break, so I'd rather switch to a Thompson. My fear may not be justified, becaus after all, my fork is carbon...But still, I would ride a little more confident a different seat post.