Good and bad function.
Prompts are often ignored or misinterpreted - stubbornly! Another issue I have had is the erase function leaving a dark area instead of interpreting the background. The expand picture function can also go weird - on one occasion the rump of a brown horse hitched to a wagon was expanded into a hunchbacked black person in bondage gear. On the other hand, results can be serendipitously good and exceed expectations.