Somebody in another forum suggested MyRO as a fab house.
I've used Myro. Been happy with their boards, I think their quality is better than PCBCart.
I would say Myro has same level of quality as US made boards (PCBFabExpress) -- but without the expensive US pricing.
It's a few dollars more expensive than other China fabs, but not a deal breaker. I'll use them again when it's time to re-order.