I was a bit disappointed with the product as reviewers said they couldn't see a difference between this knock-off product and the original product

How is this knock-off version different?1) it certainly wobbles a bit, but given the price, it's an acceptable amount of wobbling2) the rubber stopper between the glass and table was filthy and an eye sore - it's clearly visible through the glass (i'm trying to figure out if the seller can send me another rubber stopper (see attached photo)3) the finishing around the hole where the screw enters is horrible, and clearly visible through the glass (see attached photo)i am keeping the table as it would be very difficult to repackage and return the item