Works great!
It took a little getting used to, and I had a few problems with it, but that was because this was my first butane lighter ever.  After you learn how to use butane properly it works like a charm.  It has a huge flame and if you turn it all the way up it's almost as tall as the lighter.<br /><br />I was having a problem with it not lighting and not staying lit, but those are problems due to improper handling or a lack of care.  Just make sure there isn't any air in the fuel tank, the ignition sparker doesn't get bent in weird directions (I turned it myself trying to get the thing to work and I had to turn it back because it was in the right spot to begin with), and that the flame height is set properly and it works wonderfully.
Rating: 5 stars