So about 600miles in now. For the first 200miles it was really hard to get the 1st gear release down without hard chatter. But the more it is driven the less chatter happens at 1st gear release. Sometimes it still does a hard chatter and it feels like the whole transmission and engine are going to fall out of the car. Then other times it is perfect. Recommend bringing it to a tuner and having them turning the hill assist off or if possible change the sensitivity of that sensor for steeper grades. It seems that is the only thing that makes takeoff a little ruff.