This course was relatively straightforward. The biggest thing is not to overthink the questions (which is easy to do).
I read the first two chapters, then took the PA. Passed but needed to study in some areas. I studied the necessary areas then took the OA and passed. All in, I had about 6 hours of study time on a Saturday morning.
Memorize the standards and elements. They are important and help answer the questions logically.
Standards
Elements
These videos will help, too.
https://srm--c.na60.visual.force.com/apex/coursearticle?Id=kA0a0000000PNDlCAO
Don’t overthink the questions and use common sense.