repro bbd carb from china

hi was wondering if anyone has used on of these carbs advertised on internet for around $100
.. if so what do you think of them

https://www.amazon.com/dp/B016Q720J4

Best price I've seen too! It's new, and as long as everything was reproduced correctly it should be a good carb, or at least better than a 30+ year old well worn one. Non-stepper motor style too! 64% of reviewers gave it 4-5 stars. There is a note to thoroughly clean it before using, something the bad reviewers probably didn't do. I don't know what the "oil channels" are, but it probably has some preservatives to keep it from rusting on the trip over, so a good spray with carb cleaner on the outside is in order. I'd separate the top from the bowl and clean inside also, just to make sure everything is good to go.

"Notice: The oil channels of carburetors will be blocked without cleaning. Please clean up the oil channels and air filters as well as use the clean fuel before installing the carburetors"