My CAAD 10 so far:
Ultegra wheelset, Ultegra crankset, Dura Ace chain, Sugino BB30 converter w/ ceramic bearings, Specialized Romin Pro saddle, and 105 SPD pedals.

I LOVE this bike!

Since buying it in mid-November, I have ridden over 1,000 Km. I have also completed the Rapha Festive 500, one of those rides was 162 Km (100 miles).
I just upgraded the crank set today, so I haven't had a chance to ride it yet.

I am finding my CAAD 10 to be a very comfortable bike to ride. :-)

-Mitch