Crossing my fingers that they are not telling me that I have made a stupid purchace.... (have not yet tried it, since I have not returned from the holidays, but come Monday, I have it in my hand:)
I am sure photozone will also find that the Sigma is sharp...because it is clear from the pictures the lens *is* sharp ...but as an overall package, I am also interested to hear what they have to say and how the public opinion evolves as more people use it and share their experiences.
I have no regrets with my purchase at all and price was not a factor (I am lucky that way). That said at this point I would wait and see if any announcement is made on Jan 8 about a new canon 35mm. I would take other peoples opinions with the same grain of salt you should take mine. It seems like Ray 2021 has an anti sigma agenda and I am not sure he has ever even used one. He even accused us of being sigma "fanboys".
I forgot to add I did have to add +8 AFMA to the sigma and 0 to the canon to get the sharpest image.
Perhaps people take what is said really to the extremes. There is not much contest as to Sigma 35's sharpness or that the Canon 35L is showing its age now after 14 years and can stand an update. However, in addition to sharpness, one has to consider color rendition, bokeh, AF performance, and contrast and a classic lens such as 35L has presented a coherent package there.
The Sigma 35 is sharp, yes; but I personally don't like the color palet and the bokeh. I doubt that can be offset by sharpness... These are personal preferences and is not meant to be an indictment on your liking the Sigma. If these other factors that matter to me, don't matter to you, and you love the Sigma, wonderful! Enjoy the lens. 
Understood Ray. just to clarify for someone considering purchasing this lens the color rendition, bokeh, contrast, and AF certainly do matter to me and comparing both lenses side by side I think the Sigma beat or tied the current canon in every respect. This is my first non canon L glass lens.