Depends on the product.  I wish that Ruckus, Araknis and others would design theirs to look like Unifi APs.  The mounts on Unifi suck, but the over look is the nicest of any AP I have seen.  Basically a cleaner looking large smoke detector.  Ruckus was the worst looking one I installed, especially since it had, I believe, 4 or 5 green led lights clearly visible right on the bottom of them.