I would like to see some real world comparisons. I am on a Mac and have no way of testing the software. Much like printer companies that showcase their print output at tradeshows using perfectly color corrected images I think it would be interesting to see what customers are really producing with this software. Also, all of the test files shown in their youtube/vimeo videos show graphics/fonts that are replaced using freely available fonts. The software won't be able to provide a correct font replacement for commercial fonts that you don't own? Am I correct in assuming that it does not search pirate/illegal font sites?
And even better would be to overlay the resulting vector over a watermarked version of the original to see how good a job it does. It is very easy to trick the mind into thinking an autotrace is correct because you are not really seeing a true comparison unless the result is superimposed over the starting image. I often get files that are already autotraced and are asked to clean them up. They look ok zoomed out but as soon as you zoom in the poor quality becomes more evident especially when I can compare it to the original artwork that they autotraced.
Here I did a quick tracing of the guy's head on that graphic. As Bob mentioned there is no intuition from autotrace software yet. Notice how I more accurately traced the nose, mouth, lips, chin etc yet all of the details on the 3 autotrace files simplify and remove details from low res graphics. The hand has also been simplifed into something resembling a mitten and no finger details are retained.
I'm sure it can be a very useful program but about 90% of the files that are sent to me on a daily basis would not trace well using any automated software. I try to produce very high quality vector files and my customers are expecting more accuracy than what can be achieved through automation.