I tend to get frustrated with automatics myself because to me they always seem to shift when they shouldn't. Once when I borrowed my mom's Audi I was going up a hill, caught up to the car ahead and eased off on the throttle. So the automatic shifted to a heavier gear. And now I couldn't keep pace, so stepped on the throttle. Which made it shift to a lower gear again, making me catch up too fast. Couldn't find the sweet spot and it just kept shifting up and down on me like that as I just tried to keep pace with the car ahead. Was nearly screaming with rage at the damn thing before I got to the top.