I've heard about this one as well. I'm not sure why it seems to have less "hype" than Zero or ElectricSQL. I'm going to play with it this weekend. Thanks for sharing.
I agree with this, although I wouldn't bother with the rationale. It's either you had an overall good experience or an overall bad experience. I'd add a third option called "favorite" or "star" which you could you only give out to 10 drivers/restaurants/places at a time to highlight really exceptional experiences.