I love the idea that the pads are removable but at the same time, they can be quite difficult to stick back in because the hold inserts are so small. As for taking impact, I don't really find it that adequate, I find my natural buttucks provides better impact absorption than the pads. Falling on my ass while wearing the pads knocked the wind out of me rather than absorb the impact. I've fallen on my natural ass plenty and I never had the wind knocked out of me like that before. I may try the d30 version to see if there's a difference.