I’ve got a CAAD12 and to be honest find it a bit under whelming. I had a CAAD9 before and that was much more fun. The 12 feels sluggish and bland.
Its the 105 disc model, with hunt Mason wheels set up tubeless with hutchinson fusion tyres in 28mm with clip on mud guards.
However, I got the 12 as a training bike so its generally a bit grubby, and its probably unfair for me to compare as my good bike which is a BMC Teammachine slr01 from 2011 that weighs 6.6kg as you ride it, in basically pro spec. The 12 is a tank in comparison, not sure what it weighs, but must be 8kgs or more.
At least with di2 you won’t need to try and re cable it.