If you want the TL DR version looksie here!
The Core
Race changing to Protoss to test things out with the grid. Amazingly the transition between races was quite easy as most of the keys line up anyway, this is using the Terran set for people with big hands >.< lol. Camera hotkeys still going well no issues there.
The Staircase (formerly known as 'The Levels')
Been interesting and weird with this method of learning. I am finding that my macro is improving better if I go into a game without a plan and just make stuff up on the fly, this way I am learning when I can put expansions down, when to put down extra production etc.
I would also recommend to anyone feel free to race change if you have the desire to! The hotkeys make it easy and simple, and keep the gameplay fresh. Since we are learning consistent macro and we have a goal I wouldnt stress about specifics until you know 100% no matter what happens your macro can cover it! It will also help you chose a race later on if your still not sure .