Personally, I hate EBC green stuff pads. I have used them twice (thought that the first time I got a bad set and decided to give them a second chance).
They didn't feel much better to OEM - a little better bite, but nothing to write home abaout. The good thing was that they didn't fade as quickly as OEM pads did, and they seemed to have a much higher heat rating. I have had OEM pads on fire in the past, and these things barely smoked during harder driving.
The dust was just as bad as OEM. And anyone who knows what BMW pads are like knows that they give away heaps of dust, as do most other Euros. I know Astra OEM pads are very dusty. Well, the EBC pads for me were no different - and to make things worse, EBC dust is harder to clean off than OEM dust.
And finally, after about 3 and a bit months, time has come to replace my EBC pads. In the past few months I have only really driven hard on them once, and other than that my driving style has actually tamed quite a bit. But having to replace brake pads after only 3 months and about 5 or 6 thousand km's is totally gay.
I think I may try Hawk or Anker pad next. I have heard good things about them.
My ratings: OEM 4/10, EBC 5/10.
I would like to add that I am the only person I know of that has said they don't like EBC pads. Everyone else thinks they are great and doesn't know what I am on about :?