I've got the standard SL wheels.... NOT the chrome nor the snow flake style.
Don't let them tell you anything different... brakes should not pulsate, the car should not pull when braking and there should not be any vibration in the steering wheel (or seat) when braking or not.
Geesh, you would think that the brakes on this car were something new.
I just remembered, I had the virbration on the front they they fix by turning the rotor, but I also had a smaller vibration on the rear.... you could almost hear it more than feel it. They resolved that for me by "sanding the pads".
Hope this helps!