When the product arrived, I was surprised to find that it was much more than just a "soldering iron" (like many people, I don't always read ALL of the instructions/promo, etc. -- my bad). The Thing worked right out of the box, was simple to operate (once I finally looked at the instructions). I have used the "hot air function" to heat and quick-cure epoxy and to heat and bend 3/4 inch PVC pipe - no problems. I have used the "soldering iron function" to solder 12 and 14 gauge electrical wire, also to "tin" some 10 gauge, multi-strand electrical wire (note: the 10 gauge wire was almost the same diameter as the soldering tip). I haven't had any use yet for the "hot knife" or the "torch", but judging from what I've seen so far, I have no doubt they will perform as advertized. Also, I really liked the fact that can use it outside, away from any electrical source, no cord, no plug-in. As for customer service - the best. Emails with questions were answered promptly, and were helpful. I highly recommend EA Gems Butane soldering iron. It is a good product that I will use frequently.