Nikon 70-200 VR corner mush in the corners
Blurry mush in the corners of the frame at any aperture might work for the “emperor’s clothes” crowd, but it doesn’t appeal to me for a general purpose zoom that I would use most often at 200mm, where it’s at its worst.
I discovered this issue (later confirmed by Bjørn Rørslett of naturfotograf.com) . See my short article Mush in the Corners comparing it to the Nikon 200 f/2 AF-S VR.