People prone to anxiety swear by her Yin routine. Often when a yoga instructor says something like “Bring your knee cap to face the sky”, I can’t work out what it means and by the time I do, the exercise is over. Apart from the rigour, I would recommend her mainly for her clear communication. I fell over, but I was wearing ill-advised slippery socks. But when you get to a 30-minute intermediate Vinyasa, you will most likely break into a sweat.
Kassandra, also on YouTube, has quite a range and you could easily build up from nothing on 10-minute bite-size beginner videos.