Product review (4 stars): Great.  Just make sure it is correctly attached.
Replacement lens-cover for my Broan fan/light/heater combo fits well.  However, one must be careful to make sure the clips on the side are seated properly.  If not, the lens-cover can fall, and if it lands on a hard tile surface, it can break.  That is why I needed a replacement.  Otherwise, it does what it is suppoed to.