I rode the 2009 Sirrus Expert for several months on a daily basis (my Dad's bike) and really liked it. I was impressed so ordered the 2010 Sirrus Expert for myself and got it about a month ago. Immediately I noticed how much stiffer the frame is, as well as the bike being slightly lighter.

The quality of the 10-speed shifters is far better than the 2009. There are a lot of similarities between both bikes, but the 2010 is more refined overall with a better crank, gear shifters, 10-speed, 105 rear derailleur, better headset and bottom bracket as well as the handmade Easton Aluminium frame. I prefer the carbon forks being white like the rest of the bike (apart form the top of the chain stays which remain carbon finish).

One recommendation I would make is get a carbon seatpost. I changed the seatpost and saddle straight away for something more race ready. Personal preference, but I found the stiffness of the bike noticably greatergreater than the 2009 Sirrus Expert and the carbon seatpost really irons out a lot of the bumps.

Here's a photo of my bike: