I moved from an 02 Audi A4 1.8T Quattro w/ sport package into an Acura RL. All I can say is that I love this car. It's loaded with just about every option you would expect from a luxury car. It handles great considering the size of this car and sharp turns aren't dramatic and feels well planted. The ride quality is great although some might consider it a bit harsh, as for me, it's a huge improvement compared to the A4. Coming from an Audi, I'm used to expecting good material and build quality and this car doesn't disappoint. Just drive the cars you are considering and see which you like better. There's not much to complain about the RL, it's a fine automobile and you can bargain on price.
All the technology and features for the price.
More power would be nice, but the car isn't slow at all and fuel economy is better than a V8.