One of the best

My first GMAT degree was 500. For that exam I studied for more than 4 months. I read OG book more than two times and solved all its problems but I always was feeling that something is missed in that book. Something that tells all the categories I need to know for Quantitative part or all the tricks. One week before my first exam I noticed that all I was looking for I could find in Magoosh but it was too late for me. After the exam the first thing I've done was to invest my money in Magoosh. When I was watching the lessons in Magoosh I had a feeling that I found the key that I was looking for more than 4 months. I have my next exam in 3 weeks. I hope I can use what I learned from Magoosh.