I find the documentary very interesting, not maybe from a collectors point of view but more as an anthropological analysis about the typewriters in the XXI century. Of course, "like all the films", is a bit shallow or partial than the "original book", because you can't condense all the variety of uses, collectors, movements around it (or yes, but you will need a whole TV series in Netflix). Once said that I find that the film is an excellent starting point for a good discussion, about key choppers, musicians, artist, writers, new generations or the raise the prices of typewriters. I find all this topics something to discuss about, naturally, and not accusing or blaming anybody. In the end we all love typewriters because of different reasons, and this film is a mirror of that: how been so different people we are all so interested and amazed by such a machine.
In the other hand I saw also The Typewriter (in the 21st Century) documentary, when it was published in youtube, and I have to say that is was a pain to see. The interviewer doesn't know how to get the best of very interesting people, some of the interviews are not that interesting, at least for me, and the editing is absolutely terrible, not something that I actually enjoyed. But again, maybe is a good starting point for some more interesting discussions.