I've had this little grill since Jan 2007, and it's still going strong.  I use it a LOT during the summer up here in the Pacific NW -- and even a few times during the winter.  I just use the gas canisters I can find at the local supermarket -- the green ones that are a little fatter than the one pictured -- and it works fine.  I'm thinking about getting the adapter so I can use a larger tank, but so far I haven't felt a pressing need to do so.  It's nice to know that's an option, though.