Carter BBD help

I bought 1 of the AMAZON BBD carbs and it has been on MY car for almost 4 years now and I haven't ha any problems with it .I pulled it out of the box put it on My Duster and haven't touched it sense.
I have run several of the VChina BBDs with NO issues also . I also have guys say they are fine unless you need to in. Don't know don't care. Some people want the real deal Mopar carb/ I have a few.