Criteria
How satisfied are you with Rocket?
How likely are you to buy again?
Are you happy with the price?
Would you recommend it to a friend?
How was the customer service?
So far, this seems like an excellent way to learn a language on one's own. I have not delved very far into the lessons, but from what I can tell it seems like it will be very effective. The format and design is very user friendly and easy to manage.
3