Very nice bikes.
In 2006 I built a black Cervelo Soloist with Campagnolo Centaur groupset and Zonda wheels. It was a great bike for years, but then one day it created the notorious hairline crack near the seat post. Luckily Cervelo warranty is good and I got a new S1 replacement frame. The bike was my rainy day bike for many years, while the main bikes were carbon framed.
In 2017 I saw images of some nice bike projects and decided to build a CAAD12, again in black aluminum. I built that with Campagnolo Chorus and custom made wheels (Easton R90SL and Powertap GS hubs). The bike was originally destined to be my new rainy day bike, but it is just too nice bike for that. It became one of my favorite bikes and I already built another bike for rainy days.
The CAAD is still under construction in the image.