I don't know why Premiere Pro doesn't include an "Easy Ease" keyframe interpolation preset like After Effects does. In many cases, this is considerably better looking than Auto Bezier. You can simulate it by applying both an Ease In + Ease Out, but it's annoying to have to apply both to achieve that effect when a simple option would solve that.
Also it would be nice to have automatic presets where we could define the default keyframe interpolation for first, last, and middle keyframes, rather than just always defaulting to linear.