I have an Optimus Nova.
I have successfully used Diesel, Kerosene, Gasoline. (I prefer Kerosene). I store the fuel in 1L fuel bottles (designed for backpackers) and I think it is the best multi-fuel stove ever invented. I have used it alot. I've had occasional issues with wind but the included wind-shield (or anything else used as a wind-break) solves that. It is a single-burner stove, I have no issues brewing coffee in a 9 cup percolator, boiling water, cooking large entrees, etc...I have used about 1L of kerosene every 3 days cooking at least (2) full meals a day for (3) people plus boiling water for cleaning and washing as well as making coffee morning and night.
I have owned a few multi-fuel stoves but I don't think I'll need to own another.