Reviews for the Cayin TA30?

I have read numerous user reviews about the Cayin TA30, but was wondering if anyone has come across a "professional" review. Is it because the amp is manufactured in China with limited distribution in the states?

I haven't seen such a review, either. I will say that I heard this amp yesterday at a meeting of the Chicago Audio Society. I was really sweet! And blew away the McCormick DNA-1 amp (Rev. B) and TCL-1 pre.
Was it using stock tubes, or upgraded (I'm assuming upgraded)?