I've been using mine for the last two years, mainly in the winter. Compared to my old Optimus, this one is lighter, faster, more reliable(fewer parts to go wrong), and offers the canister option(which my old optimus doesn't have). This being the US, I've no problem finding white gas anywhere; and any Walmart has Coleman fuel. I do run a diesel truck and have used diesel in the Optimus....you'd best be cooking something quickly and bring the instruction manual with you. I've had my optimus die on me because of that wee fuel filter that's so easy to drop/lose. I actually like the fuel mode better than the canister for cold weather, although the upside down setup on it does allow it to be a bit more efficient than the straight up ones. Living in the central PA mountains, it does get cold up here. With the fuel bottle it's just a matter of pumping and lighting....and heating/cooking. No priming rituals, praying to the Norse gods, or trying how to figure out how to eat cold, freeze dryed beef stew.