Kneading dough in a stand mixer is an efficient way to make any kind of bread dough, however, it can get *too* efficient and there is a tendency to add in too much flour. It should still stick to the bottom of the bowl, but pull away from the sides. Also, when you feel it, it should be tacky but not enough to stick to your hands and leave a residue. Kneading the cinnamon roll dough by hand is a great way to ensure the dough doesn't get over kneaded.