I always look at askance to USD-in-a-bank-account backed stablecoins. There's no innovation in them.
Their value also depends on how many USD's stored in that bank account (not transparent to ordinary people), and the inherent problem with USD - that the FED, a central authority prints it, remains still.
There are other - in my opinion more honest - crypto-only stablecoins, like Dai (of MakerDAO) or Augmint, which are not freezable by any authority, nor cheatable by bribed auditors. They are backed solely by crypto assets, all transparent.