Awesome start, very excited for these features
1) It would be awesome if while dragging the red time line you could see the animations move forwards/backwards as you scrub it, instead of having to hit play. (also being able to drag the red line while the cursor is in the frame number area above the tracks
2) an "auto key" button, that would set keyframes while enabled on any property that changed in the layout/property bar
3) Right clicking a keyframe and choosing disable causes an "oops something went wrong" construct crash
4) Right clicking an ease curve in "eases view" causes an "oops something went wrong" construct crash
5) it would be nice to be able to make duplicate tracks of the same object, but with different keyframes / offsets for the second instanced object
6) when you first turn on edit mode, the track still remains red and you can't right click to add keyframes unless you click somewhere off the red line (but once you've set one, right clicking on the red line works to add keyframes
7) perhaps an "add keyframe" button on the upper UI of the timeline bar or the ability to hotkey that, less clicks overall
8) Changing the "total time" property for the timeline doesnt update the range of the timeline where you can set keys (it says at 24s no matter what for me.)
9) highlighting a master key and pressing ctrl to multi select but needing to hold ctrl while dragging them is just different from how most other animation softwares do it. usually once they are selected you dont need to continue to hold ctrl
10) the right click "view" menu is a tad confusing, that if you want to get back to the normal view you have to unselect the current view. perhaps adding a "default" option in there might be less confusing.
11) a little animated gif of the types of eases as you pick from the list would be nice
12) Right click "help" takes you to a 404 page
13) it would be awesome if the "properties" that could be adjusted on the timeline included bahavior actions etc. right now it seems like it can only animate a few basic parameters of the object.