Personally for apps like this, I'd like to see a confidence score with the prediction. I can deal with an inaccurate prediction so long as I know to add more buffer. Without that information, it doesn't matter how often the prediction is accurate, or how accurate it typically is, I must treat all of them as if they're the worst case scenario.<p>Same goes for things like weather apps or delivery or traffic or really any situation where the data is statistical in nature.