I really liked it on my 7D, and only sold it when I got the 5DII and 16-35mm f/2.8L II. The combination of f/2.8 and the better ISO performance of the 5DII mean the combination is great for interior shots. But, in fact the 10-22mm at 10mm has a lot less distortion than the 16-35mm at 16mm on FF.