I'd say for the occasional user the saw stop is awesome. I teach "newbies" to use a table saw at a community college and know the system works. All that said it's got limitations of course being that it is so sensitive and functions so quickly. I know it trips with any metallic laminate but never saw one trip from moisture in the wood. I've never used the system with a dado blade or molding cutter etc. I've seen teeth removed from a blade after saw stop has done it's job... actually pretty scary to hear the thing function.
All that aside working inherently safe will save your hand long before technology.... if your hand/fingers are where they belong and you're using push sticks correctly and or finger boards,not overly tired,and clearly focused on the blade...... I'm old school and used to use saws daily with no guards etc and luckily only had my hand sewn back together once
