Pro's: Nice big flame, ignition button, quick access to flame adjustment, great for quick touch ups where the broiler missed, or a few individual servings that need a quick browning.
Con's: You see this massive grip and are like wow its going to really hold a bit of butane. In reality it took less then a 1/8th of a tall can. So will be adding lots of butane on bigger batches. Then theres the plastic factor, i can see having a nice big tourch going for a bit and it just eventually either melting around the tip area a bit or just becoming so brittle it cracks. Then theres the piezo probe that sits right in front of those three huge torches, it will definitely be the first casualty.
That said i can see it being usefull for a skilled home cook that has an occasional use for it. However it has no place in a professional kitchen.