Works great in SF, and as long as it's not surging...

Works great in SF, and as long as it's not surging, the pricing isn't actually that different from the not-as-premium branded services. In fact it seems to be slightly cheaper than Lyft, the main competition. If you're in surge tho, that's another matter, and there are several other better choices like Lyft, Sidecar, TaxiMagic, or Summon.