I'm average height, right about 5' 8", but before installing these seat risers I could barely see the very end of my hood. Now I can see the full hood, and much more of the ground in front of me, especially when off roading on steep inclines/declines.
This set-up is very solid, I've seen no damage at all in the time I've had them installed (about a year now), and they haven't even shifted a bit.
I'm also rather sensitive about my height, and so I really like the fact that these spacers are discreet. Not a single person has noticed them, but I have been told that it looks like me Jeep fits me well.
These things are awesome- for the money, one of the best mods I've done. I highly recommend them!