Does anyone have experience using PCB Assembly Express?

[j_omega]

After a unpleasant experience with a consigned PCB assembly order through a Chinese company, I am looking for a PCB assembler in the United States. I have received about a dozen quotes, and so far, PCB Assembly Express is the cheapest by a wide margin. Has anyone else here used their services? I would appreciate any information, either good or bad.

[lingna]

May I ask which supplier in China did you have unpleasant cooperation with? Can you tell me about it? Maybe you'd like to know my offer.