Good but...
This app is quality. It's smooth, intuitive, and has beautiful options for the board.
However, there doesn't appear to be a player vs computer mode. Only player vs player, which is a big issue for me personally.
Unless however I'm missing something, in which case I'll be glad and rate this a bit higher.
Oh, and I don't remember seeing undo capabilities. That could be problematic.
A great intro to Chinese Chess!
Some recommendations - the app highlights which moves are legal, but knowing why certain moves are not permitted would be helpful for beginners.
I'd give this a 5/5 if you could play against the app! Nonetheless, it's a keeper.