Used to protect my 5D2 the rest of my equipment. I work with a 500 mm and 100-400 and two boxes; sometimes they clash. This cover ensures good protection equipment. All buttons are still accessible and limit the dirt on the enclosure. Beware though it does not make it waterproof! It is possible to use this case with a grip, medium light reshaping of the bottom few millimeters behind the protection that in no way alters the protection offered.
My only regret is the hand that is not holding average no more.