I have the "Pulse" variant of this as part of my note-taking accommodations.
It is quite useful, the best bit being the digital copy of notes (as mentioned earlier) and being able to convert my somewhat illegible handwriting to text form. This enables other people to actually read my notes. The audio is variable in success, but then I'm more visually-oriented anyway, so no big deal.
Having the extra copy of the notes on your machine is probably good if you're prone to losing the paper form...
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The optimist says the glass is half full.
The pessimist says the glass is half empty.
I just want to know who drank the water...