This class was a little bigger than I expected. However, they had two instructors on at all times, one that gave the lecture and one that answered any questions. They did a great job of making sure that every question got answered. In terms of quality of material, the books were excellent and the course pace was perfect. Since it was online I got to go back and see classes I missed. Both instructors were great and well educated not only in the material but also in terms of understanding the GMAT. As long as you put in the effort in the pre class studies you will certainly see improvements.