Not perfect but very good price/quality result
The lens is not crisp in the corners and the 10% at the left and right area holding it in landscape. But it does a good job on most occasions. The IS is of great help and the focusing is precise. When you have a lot of money it is the 24-70 2.8 you want. If you are happy with a good quality the lens works fine. I use it a lot on report photography and at the studio on a 5D Mark II. Give it some room left and right when you take photos and you will be happy.