i love jump squats, love them. i usually do a set to failure of jump squats with 225 to finish a heavy squat day. i dont go quite full depth as i find that interrupts the pattern of the movement too much, and just jump enough to get air, not really concerned with how much height i get, more just not decelerating the bar in the latter stages of the lift.
if youre nervous about the bar flying around and killing you, or someone else, use reverse bands, exactly the same as a ballistic bench. personally i prefer it without the bands and it really helps "grease the groove" for the rest of my squats.
just dont ever land with your knees locked, please, ever