Is there something wrong with the brakes on my 2006 Dodge Stratus?

I just bought a 2006 dodge stratus a few weeks ago I think it's really cute and has a nice interior. However there is one thing that is bothering me--the brakes seem to pulsate and jerk a little bit when I stop, as if they have air between them. This is the first American, automatic car I've had, I've only owned Hondas and they were both sticks so I'm hoping it's just because I'm not used to driving it or I'm not braking properly. At first the car was shaking really badly so I had them resurface the rotors and it improved a lot, but I still feel like the brakes are slightly jerky, although they are new. I had 3 people test drive it and my mechanic didn't see anything wrong after the rotors were resurfaced. Am I overexaggerating or is there something else I can do to stop the jerking to make braking more comfortable? Any advice would be helpful.