If you already have a Sawzall (or other reciprocating saw), you know what an awesome job they do and ripping stuff up and generally removing what needs to be removed in a darned quick manner. Occasionally I'll get into a spot though that needs a bit more finesse, the final edge next to some trim I want to save, a corner that I don't want to over-cut, that kind of thing.
Sometimes a drywall saw will work, but not when wood or metal are involved. This jab saw looked like a perfect solution, and it is!
A few things I really love: it uses my regular Sawzall blades, it folds in half and stores in the Sawzall plastic box, and blade changes takes seconds with the push of a button.
I've used this on an install for a flush mount lighting fixture, it cut drywall and wood trim, and even nipped the edge off a piece of metal.
A great accessory for the handyman (or woman).