We do quite a bit of animation right now, and animators are liking it. Our scenes are not that complex, but we do experience some of the crashes when animating that you are talking about, and the other issues as well (except for Digital Assets, which I find good).
However, animators using it have no experience with other softwares (some of them are 2D animators) so they are not aware of the workflows in Maya.
The biggest problem for me, when rigging (I'm not generally a rigger) is skin capture and deformation. I guess I'm totally incompetent (quite likely), but I find it hard to get good deformations.