The RL is way better than before! I sold my 2006 got a good amount for it too, but the 2010 is way better. The handling is incredibly tight, the interior is much richer and though it is not as quick as the TL, it is faster and smoother. It is not for everyone, but if you like a supremely quiet smooth ride and ultra tight handling, the new RL is for you. I really like the new grill and the I Pod hook up too.
All wheel drive handling is sick.
The hard drive in the single disk player in the TL is a cool feature, and continued improvement in the horsepower.