I owned the original LSP-110 and I have to say although this newer model has a child lock (boo!) it fires easier than the old one so I don't mind . They also added a feature to the soldering tip where you remove the top of the tip and the torch flame dissipates turning it into a heat thrower! Best idea! I like to have a cordless soldering iron and a heat gun available.
Actually a pretty good product but there are a few downsides; Although perhaps the best option in its price range. It initially took me a few minutes to light (after filling) - I figured the gas flow needed to be increased about 1/3 of the way. Does its job very well. The gas flow switch should be able to "fix" in the "off" position more reliably. I feel like if I put this in my toolbox the switch can be flipped to the 'on' position and start letting off the gas if I don't know. I don't want to