"I've made a lot of stoves and have not been that happy with the results of the fancy feast."

Because ... ?

I'm not asking idly, or to be argumentative. I've on occasion recommended this stove to folks interested in trying alcohol stoves, because it's a combination of easy, cheap, and my personal experience with it was quite good. So if there's something not-so-good about it that I'm unaware of, I'd like to know that before I suggest it again, either person-to-person or in a group or class setting.
Brian Lewis