Guidance Requested for Chinese Manufactured PCBs

Has any one used a Chinese supplier for their LibrePCB designed project? If you have I would appreciate your experience.

  1. Who was the company?
  2. How did you set up the Default Design Rules and the DRC?
  3. Did you have to do anything special for the Greber file generation?
  4. Did you have any issues (specifically related to LibrePCB)?

Regards all