I don't have any experience with DT Swiss's entire wheelsets, but I love the DT Swiss products I have experience with.

As noted earlier, their rims are at least as high a quality as you will find from anyone. IMO their rims are the highest quality I've ever used to build a wheel with. They're not light, but they are bomb-proof to go along with their quality.

I will say, though, that I think for what you get their "normal" road hubs are a bit overpriced. They're not particularly light, and the claims of durability, while probably true given the quality of the parts, are not really relevant in my opinion for a "normal" road hub. IMO if durability at that weight and price point is a concern, you can't beat DuraAce hubs. And if you woudn't wear out a set of Novatec hubs anyway, DT Swiss hubs IMO don't really add much value other than aesthetics if you like them.

Overall, they make top quality stuff.