This looks like a really easy way to integrate your own custom ML models into your app. I imagine this would appeal to a lot of hobbyist developers, especially given how simple it is.

The docs [1] also seem to imply they're using transfer learning from more robust models for their image classifier: "Use at least 10 images per label for the training set, but more is always better." and "Create ML leverages the machine learning infrastructure built in to Apple products like Photos and Siri."

[1] https://developer.apple.com/documentation/create_ml/creating...