The product evaluation does not ask for service and customer advice. However, the point then appears in the customer rating and in my case is only marked with 3 stars. The service and customer advice at SVB is exemplary as always. So please check SVB once to see what's wrong.
My first (replacement) starboard stowage hatch was flawless. When I wanted to install the second hatch, I had to exchange it due to manufacturing defects, which was a loss of time. The problem was insufficient deburring of the inner edges and screw holes and a coating that was too thin and full of holes. It should be noted that with an exact cut-out, two small circle segments (approx. 7mm) must also be cut out. The connection to the anode is highly recommended as this simultaneously secures the hatch cover and the coating is quite vulnerable. To avoid corrosion I glued the frame to the deck and secured it with aluminum screws. When watertightness is important, this hatch cover can be recommended. It is pleasing that it is available in traditional standard dimensions.
Addendum to my question about installation and anode The flap actually has a screw on the inside of the lid for connection (cable with ring eyelet) to an anode. This cannot be seen on the current product picture. Since the lid is mainly separated from the frame by the rubber seal and the contact points are painted, I doubt that the Ande also protects the frame. We will see. The workmanship and painting is unfortunately not nearly as perfect as in the product pictures. The workmanship does not reflect the price. Nevertheless, I install it because I had the same flap installed and completely corroded (from 2014 and no anode connection). The price is high, but I save a lot of working time and adjustments to the boat in order to install a different flap. Especially since I haven't found another suitable one that is also waterproof.