GMAT one-on one tutoring is better alternative for you as a GMAT aspirant
The good thing about GMAT prep courses is that they force you to adhere to a set schedule which may help you stay disciplined with your studies. You also get to interact with other students in class and share ideas. But, you need a great GMAT private tutor online to learn better. However, prep courses aren't tailored to your unique needs. The typical class is geared towards an average student looking for a mid-500 level score. If you're hoping to do better then you may find the instruction lacking. Also since the course must appeal to a broad audience the classes will cover every math and verbal topic on the GMAT. If you are strong in one of these areas then you will be wasting some time going over things you already know rather than using that time to work on the areas where you aren't so good at. The schedule might not always be convenient for you either. Things come up all the time that can get in the way. But if you miss a class or can't do the homew...