It is not a bad tutorial, I can follow it, then again I'm insane so you can probably ignore me.

The one detail that sticks out as being somewhat misleading is the labeling of the edit buttons as edit mode, that might confuse someone reading your tutorial and then moving to another tutorial. Oh yes, and for scaling the block you can hit "s" and then type "0.7" then pressed "enter" or "left click" to accept the scale of the block. This feature comes in handy when using a laptop.