As Bobo says
It’s definitely better than not sharpening. Since I’m at home and have already put in the effort to learning how to sharpen using stones and the money into buying a decent set of them and a flattener I’ll probably stick with them for everyday use. The expensive Tormek is aspirational. I make knives as a hobby and would love to be able to dial in an initial edge and have it come out perfectly consistently at the angle I want (different angles for different uses). A frog can dream, no?