The automatic snapshots saved me quite a lot to time on 2 occasions, where borked updates of the nVidia drivers resulted in problems booting the computer. On one hand, this should never happen. On the other, as long as nVidia does not improve, and nothing is going to force them, it is great to have such a safety net. It gets out of the way 99% of the time, but it is there when you need it, it’s great.