I bought one new, still use it as an imperfect weather bike. Geometry is a little relaxed on them, so frame sizes run a little smaller than you'd expect. At 6'2" I use a 60cm... nothing you couldn't adjust.

It is aluminum with a carbon fork. Seat post is carbon wrapped, mostly cosmetic. The 105 rear derailleur was stock, otherwise the tiagra is correct.

I like mine.