My overall rating: Not bad! Due to some negative reviews (which I can not understand) the quick-change mounting plate and sliding bracket I bought at the same time with her a Manfrotto 323 quick coupler. The rating: The Neewer® camera quick-change mounting plate and sliding bracket is the Manfrotto plate after barely. Everything is mutually compatible and interchangeable and fit! Somewhere must be saved, probably the Neewer- plate so more than 20% lighter than the Manfrotto. Two small criticisms I have but at the Neewer plate and therefore there are only four stars. The small pin for locking the drive is so sharp, as if he were simply clipped with pliers One small thing that can be corrected with a few strokes of a key file Files of savvy home improvement, but still.! Second, have the screws holding the plates are attached to the body a ring to which you can attach a camera strap for example. Here the ring of Neewer plate looks a little less inspiring confidence. To conclude, that the product has a very good value for money and I would buy it again at any time.