Good for consistent growth and practice

I believe the questions in the full length practice tests were very good and covered a large breadth of concepts if you took all 15 tests. Although the tests are not adaptive, you could review your ability against others who took that question, and I think it covered a good range of medium to hard questions. I think the video explanations gave unique tips that were simple, but sometimes took a few times to rewatch to understand the link. Sometimes, the written explanations were not in enough detail. I found the questions on the actual GMAT to be similar to the ones I saw using the Expert's Global complete GMAT prep. The instructors know what they are doing!