Transmission shifts very rough.
Service engine soon light illuminates frequently.
Bose stereo sub rattles horribly.
Leather seats crack easily.
Front power windows squeak and are extremely slow.
Ticking noise from engine.
Sometimes rough idle.
I love this car and it's very comfortable. The ride is smooth, powerful, and refined.
However, the reliability is something I worry about with this car. I have had numerous problems with the car since I purchased it a few months ago.
The engine ticking will usually stop if you put a 91 octane rated fuel or higher in it and drive it hard for about a half hour on the highway. The front windows can be greased and this will resolve the slow window problem and the squeaking.