Funny, I put Conti DWS extreems on my wifes Lexus and couldn't be happier with them. They are very quiet and hold the road like crazy! In fact, I think they hold the road better when its wet out.
I have never seen a Conti truck tire that I liked. I have Conti tires on my MTB and love them too. But as far as the OEM Conti tires on the LR4; they were OK but nothing special. They rode well and were fairly quiet, but snow traction, mud traction and looks were not great. They were just not what I wanted to have.
Rob
Now that I think about it - the bigger difference was going from Run flat tires to regular tires. RFTs have a much harsher ride.