I'm not won over by these either. I don't think they're an aesthetic improvement on Dahon bikes, some of the colour choices seem a bit off to me and black anodizing/powdercoating seems to be on all the bits that tend to scratch (handlepost, seat post, cranks)

One improvement is that the the 180 handlebar rotation gets the folded size a bit smaller though on the Link this appears to result in a chainring that projects slightly further past the frame hinge, not nice in terms of oiliness.