What I haven't seen demonstrated in any of the media releases yet is that the greatest strength (in my opinion) of the Stans DART system is its ability to seal up those cuts high on the sidewall near the rim, or even the "pinch flat" holes caused by the bead hook that sealant can never fix properly.
The old sticky bacon plugs can seal them short term but due to the high amounts of sidewall flex, the holes often deform and the plugs leak.
The chemical reaction that occurs in the DART material forms flexible chemical bonds and is as good as having a new tyre again.
I have raced on tyres with multiple holes fixed by this system