I've asked for more latin combo styles in the past, including a swing-rhumba and a swing-acoustic bossa style. Even better would be four combo styles, two using swing style plus either rhumba or acoustic bossa, and two using ballad swing style plus either rhumba or acoustic bossa. The greater number of options, the better. I can't comment on the piano comping because I'm a pianist and always mute the chord instrument when I use iReal Pro.