I had an 08 cts. Loved it and hated it. The biggest trouble I had with it is the dealer. Most mechanics cant work on them some I had to take it to the dealer. Cadillac dealers want people who will throw them money without asking or using their warranty. To replace the front turn signals was like $300, Imagine what it cost me to replace the belts.
When it was running correctly it was fucking awesome, plus everyone loved it. In all honesty, would you rather hold a key with the caddy symbol or the ford?