I work with these lenses. I think the only other things the video hits on that I skipped over are: Its heavy, which is not really a design choice but just the result of all the stuff that goes into them and this particular one is a very long lens, which is also not always the case with these box lenses (the one currently on my workbench is a 24x, for example).
Edit: In my experience, the mass of the lens is not as important as the tripod head when it comes to keeping operator shake to a minimum. A good head will smooth out the operators movements and a bad operator is perfectly capable of making 100lbs of camera and lens shake.
Edit: In my experience, the mass of the lens is not as important as the tripod head when it comes to keeping operator shake to a minimum. A good head will smooth out the operators movements and a bad operator is perfectly capable of making 100lbs of camera and lens shake.