I did alot of research on all different types of bio diesel processors. My personal conclusion was that systems like and including the fuelmeister were last on my list. I dont like the idea of heating oil in plastic and if on the off chance you had a fire you are hosed.
My personal choice will be the biopro because of ease, safety, quality of unit and quality of fuel. If I wanted to make bio diesel a second job I would choose an appleseed processor type over any plastic type.