My experience driving through Atlanta from Cincinnati on I-75 has been less than successful. I drive a 'C' and pull a Jeep four down. Maybe its changed, but when I would get settled in the right lane, it would exit and a new lane on the far left would appear. Nobody driving a car wanted to let me merge. (I don't blame them) If I was able to move over, I was again in the exit lane.
I even drove thru in the middle of the night once - and got stuck in a traffic jam. I finally arrived at the problem. A guy in a car got stuck in traffic in the far left lane. He'd been there so long that he fell asleep. People in the next lane were letting other drivers merge in front of them and nobody was blowing their horn. Heck, he may still be there.
Now, I take I-65 south to the Gulf and I-10 east to pick up either I-75 on the Gulf side or I-95 on the Atlantic side. Its a longer drive, but nobody has to pry my fingers off of the steering wheel when I get there.