These are the first large-sized original samples of the lens that can be seen on and download from the web, via DC Fever (in Chinese). Click the following to download the full samples:-
The above pictures were taken with a 5D Mark II, i.e., on a Full Frame body. We can see the bokeh quality and the resolution of the lens for where it is in focus. Seems not bad to me for the first impression. I might buy this lens shortly when it is available.