I finally got webgazer to work once, a year or so ago. As I recall, it required non-default settings, shaving my beard, adding lights pointed at my face, hanging a backdrop, and holding eyes and bushy eyebrows just so. And maybe something else I'm failing to remember. The joys of small training sets.
No doubt it "just works" for some people. For others, not so much.
No doubt it "just works" for some people. For others, not so much.