Today, I have discovered Sinter brake pads. They are told to be better than standard pads. Sinter claims 15-30% improvement over Shimano G03A pads.
Does anyone have experience with these pads? Are they worth the price? Should I invest some money to upgrade my SLX brakes? I’m always looking for more power and modulation for my G36er to go full speed from the top to the bottom of mountains 
Back when i did downhill MTB i used sintered which were amazing but only if used hard, if not used hard they glaze over which causes squeeling and then performance loss.
I also used to find when not used for a while that they don’t initially work there best until they have been scrubbed off , i put down to to the metal sinters in the pads material which is exposed has a thin layer of rust on them which once scrubbed off works fine again.This only took first couple of braking to clear.
If your after better braking i would go 4 pots over 2 pots first as the pads you linked look to be 2 pots.
There seems to be a confusion over the brand, Sinter, and the pads material (metallic, also known as “sintered”). As they point out, “sintering” is a process used for making organic and metallic pads.
Sinter produces only organic pads, with different compounds. I’d like to get reviews on these specifics pads, not on the theory of “metallic pads brake better when hot, while organic pads has good braking power even when cold” 
BTW, I’m totally sold to 4-piston brakes. It’s been a while since I have used a 2-piston brake 
Oops my mistake!! Sorry i have no knowledge of the pads brand which is new to me.