There are a few inaccuracies here, though it's well-done for the most part.
The most glaring one, for me, is when he says you can do a pretty major water change after two weeks in copper. At that point, there are still tomonts attached to the hard parts of the system, which could hatch and reinfest the fish. Better method would be to move the fish - and only the fish - to a new QT after the two weeks in copper.
~Bruce