I have had some complaints like changing the brakes at only 40,000 miles and tires at 20,000 miles but I took that opportunity to make my IS my own and Placed Custom Wheels Now it is a real beauty and everyone tells me how great looking it is. I just wanted to add to anyone considering purchasing one this car is Rated to get 32 MPG on freeway at 65 miles I've achieved 31mpg NOT BAD for luxury sports car. I am very happy with mine. Also Battery needed to be replaced after only 40,000 miles and 2 years I didn't feel this was normal.
The drive and the AUDIO system are Awesome!
Better Navigation without the need to spend 350 dollars for updating it every year or so and 2 cupholders in center console vs 1 currently and better back seat space.