While Fusion 360 is overall fantastic, I find the Animation module to be lacking what I would consider most basic components. The two features that seem most lacking and would be ideal for inclusion are:
1. Allow animation of joints and driven joints as actions
2. Use keyframes to set all animatable attributes such as position (and hopefully joint driving)
All animation programs I've worked with use keyframes, from the most basic to the most advanced. The fundamentals of Adobe After Effects would be a great model upon which to understand the basic expectations: any controllable attribute is keyframeable to any value at any point in the timeline.
I understand animation is not Fusion 360's core competency, but it is being pitched as a software solution that wraps all these capabilities into one, including animation. While it might take awhile before high complexity features arrive to animation, I believe the two suggested above are almost fundamental requirements to visualizing one's concept for others.
Really appreciate this whole package and hope these efforts are already in the works.