I just put new ATE pads and discs in the fornt of my car. Brakes have never felt better. I contribute this to the new discs and pads.
I used textar in my car before I went to the ATE. Since the discs were worn the textars were gone within 6-8k miles.
Hopefully I'll get more life out of the new discs and pads. brake dust has been fairly small compared to the others. Squeal, non existant.
Go with the best pads you can, and make sure they use stop squeak. also make sure the disc tightening bolts are tightened. if loose they can cause a squeal.
'92 300CE - Sold
2004 C240 - C7 Wheels
2015 ML350 - P1, Pano, Ash poplar wood, Sport Dinamica interior, Running Boards Keyless go.