I have been using EBC brakes on my motorcycles for a long time, and have started using EBC on my cars over the past 7 years, too.
I have used Green Stuff on my '07 Altima, Red Stuff on my wife's '01 PT Cruiser and '08 Chrysler Crossfire, and Yellow Stuff on my '11 Mazda RX-8.
The Red Stuff is really really noisy for a long time, but has a lighter color dust than all the other brakes, so it's less obnoxious than having your pretty wheels covered in dark dust.
Once they are fully bedded in, they are good and quiet, and I don't feel that there is a decrease in braking performance.
The Yellow Stuff pads, however, don't bite as well when cold, so you have to make sure if you have a car that activates the rear brake pads as the parking brakes, you really pull up hard on the parking brake when you park on a slight hill, and make sure it's in gear, otherwise it will move. In this case, you are better off using Red of Green stuff as the rear brake pads for cold weather use.
BC.