I have a Chinese preamp (Consonance) which has operated flawlessly for five years.
I know personally of a couple of importers of other goods who will not deal with the Chinese having been stung by high quality samples and low quality product.
Reminds me of a Soundstage preamp I bought a couple years ago. The "massive" transformer was only a facade for much smaller one inside an empty shell of a large transformer.
Keep your eye out for this deceiving unit:
Hummed more than a hummingbird and super cheap parts throughout.
The words Sound and Stage had no right be be used with this product unless the suffix "less" was added to each.