I've had a Bosch 10" slider for years and am very pleased with it. I like the detents and the clamp that I find very handy. The original blade works very well.
I would also say that I disagree that a jig saw is safer than a mitre saw. Both can be used in a safe or unsafe manner. I don't fell that there is anything inherint in the Bosch slider design thats puts me in an unsafe position. But, YMMV.
The bottom line for me is I don't have "tool envy" when I see another slider and for me, that's about as high a compliment as a tool can receive.
Good luck and cut safely,
Jack