I guess like the guy in video says, as may be expected it doesn't replace a real second player on harmony parts, if you have access to one. It may work OK on some songs, if you don't have to switch between harmony settings in the same song. I guess it would be better to hear on an actual song, like a Boston or Allman Brothers tune, the pitch bend may be OK if you don't have a guitar with a whammy bar. I guess Ill take it for a test drive, it may at least be a good tool to develop harmony concepts for original tunes.

Cheers