I have done a little yoga for a few years, and I'm in decent shape, but this was too much for me. I could do many of the poses, but once it got into head stands and handstands, it was too much for me (and that was a significant stretch of the video). I would never feel safe trying those things at home alone, without the guidance of a trained instructor, and I'm surprised he would suggest it. I'm not interested in breaking my neck, thanks. I would put that kind of stuff on an advanced video, where people doing it would likely have done that in a class before.
The rest of it was rigorous, but attainable.