If you are doing a small to medium scale product or are just starting out with a product you hope one day will be very big I would skip China to start. You are

If you are doing a small to medium scale product or are just starting out with a product you hope one day will be very big I would skip China to start. You are much better off using a company like CircuitHub or MacroFab. If your product becomes really successful you can always transition to China later but there are a lot of pitfalls to doing that upfront.