I was just wondering how useful Magoosh is and whether I should add that onto my list of GMAT prep materials? Currently, I am using the Manhattan Prep book series as well as the official GMAT materials.
The resources you already have should be sufficient.
Since you have the MGMAT books, you might consider signing up for Beat The GMAT's free 60-Day Study Guide (https://www.beatthegmat.com/mba/gmat-guide).
Each day, you'll receive an email with a series of learning activities that guide you, step-by-step, from Day 1 to test day. This will ensure that you will cover everything that the GMAT tests.
Here's an outline of all 60 emails: https://www.beatthegmat.com/mba/gmat-guide-outline
Cheers,
Brent
