I own three pairs, White, Matte black(My fav) and Shadow. My units are fine, I also own the LP1 and 2. There are plenty of review out there that explain about the Muddled mid range.
here's a good honest review from a reputable person http://noblehifi.blogspot.co.uk/2012/11/v-moda-m-100-review.html
It's weird because the M100 sound great for dubstep, but any anything folk, acoustic and rock sounds like junk IMO