I have DA, but my chainrings are "shark finning", so when I say drivetrain, I mean all the cogs. The brake levers are kinda funk (probably from salt air, sweat, and general stuff), but the deraileurs seem fine. Some surface blemishes on the front, again probably salt air, etc...

A little lube here and there and it's still as smooth as when I bought it. Although I do think I abuse it quite a bit.

I had my LeMond Ultegra for 1.5 years before I had to replace all the cogs (and chain). But I had the added benefit of replacing the bottom bracket. It was pretty loose for some reason.