Honestly, the consensus on SOL here on Head-Fi isn't so negative. Their pricing is much more fair than their competitors, and the bass on their lower two models (at the very least, as these are the ones I've spent significant time with) isn't nearly as boomy and loose as, say Soul or Beats. The mids are a disappointment for sure, but much less so than a Solo.
I agree that they're better than the original beats solos but other than that they're horrendous.
I was gagging 3 seconds into a song wearing the lowest sol pair. I though maybe the more expensive one was better but NOPE. I was definitely wrong there.