No comparison between Japanese-made vehicles and Chinese-made . Maybe someday , but not now .
The Chinese marques have staked out a position at the low end of the market. This generally means cutting process and materials corners. I expect for a given (typically rock-bottom) price, no one beats them on quality. The American and Japanese makes sold in China generally have components made locally, typically by subcontractors that have set up plants in China. My understanding is that they are in no way inferior to their American and Japanese equivalents. In fact, they are likely to be superior to their American counterparts because the UAW isn't padding their labor costs.
I suspect this means GM's made-in-China products are every bit as reliable as their made-in-China Japanese counterparts.