edge cases... haven't been big problems in practice
Waymo doesn't acknowledge any "problem" that doesn't result in a collision. They don't seek input regarding such cases. Heck, most reputable trucking companies at least have a "his is my driving?" referral number clearly visible.
I've seen three cases where a driver had to take evasive action to dodge a Waymo fail in the past month alone.
My personal experience with Waymo autonomous driving has been pretty good. Never seen them do anything poorly and I see them a lot. They're known in Mesa/Chandler Arizona as decent enough drivers, but they can take a little long for a left turn and they also follow the speed limit rather than the flow of traffic which is the normal Arizona case.
I've seen three cases where a driver had to take evasive action to dodge a Waymo fail in the past month alone.