I didn't like it much. She doesn't have enough rhythmic punch, doesn't pronounce the words clearly, and that maundering guitar accompaniment adds nothing. It all comes across as washed-out, like the colour in the video.

There are lots of better performances of mouth music.

I can't remember where I've heard this done, but about the only accompaniment for it that's worked for me has been an aggressively untraditional one by electric bass.