I had stuggled between the Acura RL and the Lexus GS. I have had the car for about 3 weeks and I really love it. The ride in the GS is very smooth and quite peppy. Simply put, the GS is classy. So if you are looking for a refined car that is great on gas and has a nice ride this is it. I leased my car and in 3 years who knows what will be out there.
Comfortable ride and nice audio system.
The navigation and voice commands are inferior to my last Acura (2004 TL). If they fixed that, I think the car would be incredible.