Far superior to regular iron pads - for the longest time, I would only buy Stubben Fillis irons, because they came with black pads, which I think looks much nicer than the icky stained color the white ones become. I then rode in a friend’s saddle, and she had the Super Comfort pads - I loved the additional traction, and they added just a little bit of cushion and width to the footbed, which resulted in a more comfortable ride and less knee pain for me. I promptly bought my own and switched out my regular pads for those.
They are not as grippy as the HS (or HS-like) cheese grater pads I’ve used, but I also found those to be very uncomfortable on the ball of my foot. Riding in another person’s saddle that had Royal Rider stirrups with the cheese grater pads, I have had my foot slip off the stirrup, so I would say those are a less “aggressive” cheese grater than the HS-type.
I do also have Pro Jump Extra stirrup pads, which are the wider version of the Pro Jumps. I think the Pro Jumps might have a bit better grip, but after having ridden in those for a while and then switching back to the Super Comfort pads, I feel that the Super Comfort pads work better to absorb some shock (my knees have ached less after riding when I use the Super Comfort pads than when I use the Pro Jumps).