I've been using UMotion for about 2 months and so far it's been very usefull.
There are few things however that could be improved.
1. Interchanging background for each track in clip editor - sometime it's hard to tell which keys are from which properties.
2. After clicking 'Add Layer' button, the text could be selected, so I could name it (now I have to select the text on the popup). Also, the Enter button doesn't work as OK, so it needs to be pressed with a mouse.
3. Changing speed of parts of animation - now I need to delete every other key and manually move following keys to achieve that.
Customer support service by UserEcho