This lens has very smooth and accurate manual focusing and you really need to understand it to get the most out of it.
It has great contrast, some CA but well controlled, colors are vibrant and bokeh is just creamy. As some previous reviewer mentioned the images looks almost 3D.
Good focusing distance is around 8ft at its widest aperture, not exactly close but I wouldn't give it a negative rating because it, just like I wouldn't give it a negative rating because it's Manual Focus. I knew that before buying the lens.
I use this lens on my Canon 7D for shooting HD videos and once again it shines - image quality is just spectacular. I must say that still images with this lens and my Canon 7D is not nearly as nice as the images from my Canon 1ds Mark II. Something to be said about FF camera.
I wouldn't use this lens for action shots like sports etc. If my situation calls for auto-focusing lens, I usually use my 24-70mm f/2.8 L or 70-200mm f/2.8 L IS. This lens is not suited for all applications but Portrait and Video - You've got a winner.