Ride quality is, like the CAAD10, a tiny bit on the harsher side but it’s by no means a teeth rattler. Over poor road surfaces I definitely felt a little more through the back end than with, say, my Ridley Helium which I ride the same roads with frequently, but even after three hours there was no feeling of fatigue.
Plus, the best way to improve comfort isn’t anything to do with the frame, it’s the tyre pressure and choice that will give you the most noticeable difference there. The ALR comes as standard with 23mm