Part of this instructional efforts appeal is due to the devoted Nina Hartley fans, who'd never miss a new opportunity to see their favorite star get double plugged - a point which might sail right over the collective heads of new porn devotees.
In any case, the clinical introduction by Hartley and Kylie Ireland (uncredited on the box) is tedious stuff indeed. The obvious knowledge that one could glean from a single sentence - "make it consensual; be safe; use lube; don't mix 'n match" - is stretched to an interminable length as the gals banter back and forth during a redundant Q & A session. (At one point sloppy editing even manages to repeat two different takes of the same dialogue.)
Just to get to Nina's scene, a guy may suffer in silence while his wife or girlfriend insists on watching the instructional sequence, but lone home wankers will be sorely tempted to hit their fast forward button. When Randy Spears and Chris Cannon finally take the stage, it's action that clearly speaks louder than words. The threesome thoroughly enjoys the experience, as do the subsequent trio (Nikita Denise/Evan Stone/Mario Rossi).