The SawStop is a great system. Really, it would be wonderful if it was widely available on every saw. Unfortunately, the owner of the technology won't license it to anyone for less than extorionate rates (as in doubling the cost of a table saw.
Ok, every inventor has the right to make money of their invention, and I wouldn't begrudge the man that, but for one thing: Hee's lobbying congress, and the CPSC (consumer products safety comission) to make SawStop mandatory on all tablesaws in the U.S.
Sorry buddy, it won't fly for the microstamping scumbags either.
The system works, very well in fact; though not with all saw blades (the blade has to be within a certain range of inductance). In fact, sometimesit works a bit too well, in that some woods with resinous saps; and wet wood; will set it off too.
Oh and when it goes off, the saw has to be rebuilt at the cost of from $80 to $300; plus the cost of the blade (and premium saw blades can be very expensive).