I ran this game 7 times at a games festival with group sizes varying from 3 to 13 players. Most of the groups were made up of players who had never played an RPG before let alone D&D. I guesstimate the youngest player to have been around 6 and the eldest around 70 - all players loved playing the game. There are even aspects of this method of decision making I'd want to carry over into my usual RPG playing. The frustration I predicted, of nothing getting anything done and it feeling tedious, was way less present or annoying than I'd imagined it'd be, and in fact, was funnier and more preferable, to the frustration that can often happen within a D&D game of players not articulating their motivations OR spinning off into elaborate speculative planning instead of doing stuff. I only ran the first campaign as some of the others had themes I wasn't comfortable playing out with strangers and I also added the X card safety tool.

Oh wow, that's great to hear! I was very worried it was way too nerdy and complicated for casual play at a festival and among strangers. I bet you are a terrific DM.
I think the frustration factor depends on how granularly the group decides to enforce the formal process, and whether certain players decide to abuse it as mischievous roleplay - and that fuzziness is by design. I imagine strangers may be less inclined to troll each other. Thank you so much for running it and for the feedback!