I wanted to learn this program but with uni and other projects I was afraid that I wouldn't get the time to, so I did the only thing I could; dive right in head first and do my uni projects in ToonBoom to force myself to learn it.
The interface it actual very easy to use but I hear a lot of people online say that it's very hard; so it's probable just a animation learning curve that I was fortunate enough to be used to animation interfaces.
The other thing I really liked about ToonBoom was the how you could set so many different
thing to a shortcut and you can set a short cut to be anything such as (ctrl+shift+alt+A) which adobe and others don't let you do.
Here is the ones I use for my tablet. (S4 is not in use yet)

This is a test animation I did to learn the basics of animatingThis here is what I'm working on next but I'm not sure what the final outcome is going to be yet.



























