I wrote an article called “The Top 8 Most Common Ember.js Developer Mistakes” for Toptal that just went live on their blog. As the name suggests, it describes the typical pitfalls beginner, and sometimes advanced, Ember developers make with a mitigation strategy for each of them. I am quite happy about how it turned out and suggest you give it a read.
Also, it turned out to have more than 2500 words so I thought it might be convenient for you to have it as a pdf. It spans 13 pages and you can get it right here below by providing your email address to send the paper to: