I have one of these-- a 2010 model-- and I've put about 3600 miles on it. It's a good bike. Would I prefer full Ultegra? Yes, but I got mine new, off eBay, for a little more than $1300 so I can't complain.

I will second the motion to replace the brake pads with Koolstops. I did the very same thing and the Koolstops are very good.

Just FYI, last year I was getting a creaking noise from the crank/BB on this bike. It took some effort to track it down; it turned out that the threads on the BB were not properly lubed. It's been almost a year since that was fixed, and my drive train has been nice and quiet since applying the Ti-prep. You may want to take care of that before too long, because the BB was not easy to remove, and the mechanic told me that it probably would have been much, much harder in six to twelve months. Apparently proper assembly calls for an anti-seize lubricant like Ti-Prep. Without it, the aluminum and titanium can fuse/cold-weld.