YMMV, the machines are very consistent, it takes some serious discipline to match that consistency at home, and you can get color casts accidentally. The C-41 chemicals are also a bit more unfriendly and more difficult to dispose of properly (not sure about positive). So these days I only do non-chromogenic film at home, but I might have made a different choice in the 1990s.

Speaking of which, Kodak doesn't even make E-6 film any more.