Hi @ILoveMyself -- Chris Aitken from MBA Prep School. Thanks for asking about our online course! We do have some testimonials posted on the "other" major GMAT forum, so I won't link to them here

However people have found the course, its structure, and materials helpful.
If you do decide to try us out, please note that we offer a 30 day money back guarantee. All you need to do is send us a message asking for a refund within the first 30 days, give us a little bit of feedback about how we could have made the course better, and we'll immediately refund your money. Naturally we "eat" the credit card and/or PayPal fees as well, so you get 100% of your money back. But we're confident you won't need to take advantage of our guarantee!
Any questions, please let me know via email (below) or feel free to PM me here.
Thanks, Chris