I am using Essentials with my 4th and 5th grade students. I love that I can combine some instruction for both of them and also have different levels for their different abilities. The teacher manual is easy to understand and the material holds their interest and is excellent.
It took 3.5 years, but this girl just completed Essentials level A—all 30 lessons! We started when she was in 3rd grade, newly diagnosed dyslexic, and had tried a zillion other reading/spelling/writing curricula. She’s in 6th grade this year and now we will cycle back around to level B. We have moved through the first 7 lessons of level B in 2.5 months! It shows us that we’ve both learned a whole lot about the “whys” of the English language!