I tried myself - the problem is low quality

I tried by giving a standard component to some company in ShenZhen. 130RMB/hour. The code come back works to the level I expected as the first try. But the problem is that these guys just try to complete. There is no abstaction or design put into the final code. Functions are 200-500 lines. This can not be used in our production code and we had to rewrite.

Another problem is that they underestimate the work. I would rather they spend more time, do a good job and charge me more.

My trial was not a very successful one.