I enjoy reading physics texts, but I had never really enjoyed reading transcripts of lectures (in any subject). This book, however, was definitely worth the time and effort to read.
Even though most of the concepts are simple, basic physics, I still learned things. Most wonderful of all were the many times a lightbulb clicked on in my mind when I saw how simply and cleverly Faraday constructed his experiments. These guys really had it together.
Though somewhat devoid of helpful diagrams, the text of this work is often enough to give the reader a good idea of how Faraday was conducting his experiments and presentation. I think the biggest detractor is that you really have to slog through the work and use your imagination to figure out what he's describing.
My only wish is that I could have been there to see these lectures myself. Sounds like quite the demonstration.