Fit and finish are terrific: clean threads, properly sized holes, no sharp/rough edges. No rounds through yet, so I can’t speak to its robustness. No paper installation directions came with my product, but instructions are easily found on Haga’s website. Even without it, install is pretty straight-forward. Shipping was just as fast as any of the big companies. Not to mention Haga is the only manufacturer I found that offers this adapter. Kudos to the small guy cornering the market. 5/5 product. 5/5 would do business again.