Hi udvranto,
Thanks for considering Kaplan! I hope you enjoyed our sampel class. I just thought I'd comment on a few of your points.
1. It may seem like Kaplan focuses on tricks, but really, we focus on raising your score in the most efficient way possible. That means that we recommend tricks where tricks will get you the right answer faster and more reliably, and we recommend theory when the math or verbal questions require it. That said, our resources include every theory, formula, and rule that could appear on test day; we just don't emphasize the theories you aren't likely to need.
2. Kaplan wants every student to get the best score they possibly can. The kaplan guarantee lets student retake classes if they aren't satisfied with their scores, even if they are well above the 'average' score. I've had students retake the course with 680s and 690s (and succeed, hitting 700+ the next time around!).
3. I can't comment on
MGMAT's class size, but I do know that our class size varies widely from region to region; in New York, our classes often have twenty students, but here in cambridge it's been a good while since I've had a class with more than 10 or 11.
4. I've been in the business for almost 9 years now; I'd say I'm experienced
5. Our class sessions are 50%/50% math and verbal, though we do include the AWA section in our verbal lessons.
Please let me know if you have any other questions about Kaplan's offerings!