Not sure what you mean by "rough". Most of the construction is about 50 miles from the Florida border. And then continues all the way to the border. I think I started cringing when I saw the "construction for the next 26 miles" sign. On that stretch, it really is rough. The lanes are uneven and not paved well. I have a bad neck and it hurts after we're through that. When you see the signs saying you are in a construction area and the speed limit goes down, follow it. Especially around Ashburn. You really don't want a $200 speeding ticket. In Georgia, if you get a bad enough ticket, you have to show up in court.
But the up side? They are producing a better Georgia!