How did people do before? 1

The camera takes good hand, but it is true that the air intake is misplaced.
Furthermore a handle (optional) for a 2-handed grip would have been nice for some cuts.

Level performance and quality, the device itself should take a few years but against the blades are fragile.
If you have the misfortune to fall on a nail cutting wood, farewell blade (tested!).
And, as all consumables, they are not given, so beware.

Fortunately, there is possibility of adapting the Bosch blades, or any other brand for that matter, because it's just a nut and a clamp, which allows for different sets of blades cheaper.

I highly recommend for DIY.