I have the WeatherTech liners for my 08 CC, and they are the best. I do like them better than the Husky liners I had before.
They appear to be much heaver duty, with thicker construction. They are deeper so the hold more dirt. They fit is good, maybe better than the Husky.
I just bought my 2nd set for ther new 08. The 99-07 passenger side is dirrerent than the 08 passenger. I believe the drivers side is the same though.