You get what you pay for. Consider that you don't have to change vehicle mounts unless you change cars.Looks fine but their price seems high.
Superglue? Try Locktite -- that's exactly what it's designed for.I can tighten the screw in the swivel joint but it eventually loosens up. I put some superglue in the swivel joint the other day and it stopped movement on one axis but still turns in the other. I will try more superglue tonight.