Based on the two DMM SACD's I have, a DMM disc sounds more like a LP than a CD. It is not better or worse, but just a matter of personal preference. I do not think it offers a superior sound than a well-made CD or SACD.
If you prefer the LP sound, than you may consider a DMM disc. Of course, if you prefer the LP sound, you might as well get the LP. But a DMM disc offers the convenience of a CD.