This is an Articulate presentation on using Camtasia studio. Plusses are that the Articulate interface is great (viewing a table of contents, notes, attachments, navigating using the outline), the audio is good, and the pacing/timing of the presentation is appropriate.
The tutorial was long - 92 screens and 29 minutes, 14 seconds. Dividing it into multiple briefer sections may have been a more useful strategy, even though the Articulate interface lets the user navigate to various sections quickly. There was a lack of consistency in the navigation - sometimes I had to click to advance screens while other times the screens advanced automatically. While it covers Camtasia 3 (and at this writing we're up to Camtasia 5), much/most of the content is still highly relevant and useful.
The Articulate interface is useful for such a long tutorial and provides users with the opportunity to navigate at will in the material.