Maxx air vent

I had to drop the screen over the toilet to remove a wasp nest. While cleaning the vent dome, a center tab popped out. Glued and caulked it back on and the edge of that dome is just crumbling, probably from sun damage. While looking for a replacement, I ran across the Maxx air, which seem like a more sensible solution.

Any comments on this product? It also seems like an easy installation.