Just downloaded and installed trail. Works really well from my initial testing. One command that most people use a lot is 'jj' for quick exiting of insert mode. Also, '$' jumps to the next to last character of a line. It should jump to the very end of the line. If you added/fixed these two things I would totally buy it!
I'll look into your suggestions, thank you! Contact me at info@5vor9.com for more info if you like