Presented some strange unscrollable tables, then when trying to press play, it threw some error. One video was probably tabulated, but inaccessible in player. Meh, maybe will work when HN effect wears off, I was searching for such service lately but everything required logging in or was "for business and education use, trust us, it works".
Only things I've seen it get wrong in a few minutes of testing are french lyrics (try a Serge Gainsbourg for example).
But it is really, really amazing.