I bought a fully loaded 2012 Optima EX in Feb. 2012.
I noticed soon after buying it that the leg room is very tight.
My leg was constantly jammed up against the speaker in the driver's door.
The seats are sharply molded and hard.
The transmission went out at 13,000 miles.
Recently, I noticed an issue with the steering.
While driving down the freeway, the car would begin drifting right or left.
When you go to correct it, there is a "catch" in the electronic steering.
If you do a search for this you will see many others have had this problem.
The real world MPG is nowhere near what thet advertise.
This car has a ton of bells and whistles and is great looking, but buyer beware.
Heated and cooled seats.
Beautiful exterior looks.
More comfortable seats.
Fix the problem with the steering.
Make the passenger seat height adjustable so you don't feel like you are sitting in a pit.