So far I like the neural filters. It would be nice if when using the Smart Portrait beta filter, the gaze slider would be universal so that one could have the eyes looking in whatever direction one wants. So far, it only allows for left and right. Just a thought, Adobe. Still waiting on the rest of the filters to be available, i.e. Face Cleanup.
The Photoshop team is very interested in your feedback on the neural filters, but unfortunately, they're not likely to see it here. When you're using a neural filter, there are two buttons below the Smart Portrait sliders that ask if you're satisfied with the results. Clicking on either Yes or No will bring up a dialog that requests more details that will send your feedback directly to the team.
Another option for sending feedback would be to add it here: