Okay as some of you know I have had this lens just over a week. Here are some of the things I have found.
1. Focuses FAST.
2. Need a camera with good AF ie 1 series or 5D3 or maybe a 7D
3. The color, and bokeh are nice even at F5
4. The DOF gets razor thin below F1.6 especially when you are within 3 feet
5. Shoot multiple shots if below F1.6 to play it safe
The lens is very SHARP, F1.2 is useable for sure!
F1.2
F2.2





