they are asking 275, in barely used shape. not too eager to buy used carbon though.
the bike is a 56 size and i ride 54, a bit of a stretch for me and that is another issue. been looking for an aluminum road bike as what i ride now is a steel trek touring bicycle.
I doubt you’d have problems with this design and you might have signs of damage if it had been crashed, scrape on the paint, etc... the whole carbon seat stay glued to an otherwise aluminum or titanium frame, was to leverage the feel of carbon and supposed shock absorption.
But it might be too big and swapping stems to get it to fit only works to a point. My rule of thumb is I can adjust down to a 55, or up to a 56, smaller or larger then that doesn’t work, I’ve tried it and I know.