I don't know the DNA-1, but have the DNA-0.5 with SMC revisions & have been very happy with it. Lived with Level A revisions for about 2.5 years and recently went the full monty up to platinum (and happy with the results).
I think there are a number of threads about Steve's revisions if you want other feedback.
I think there are a number of threads about Steve's revisions if you want other feedback.