It's been about 6 weeks on Rocket Spanish. I'm having a blast learning Espanol. Overall I give it 5 stars.
My observations: introduction of a new word (noun, adjective, adverb, preposition - whatever) without any explanation (te, se, lo) is most disconcerting for me; asking a question when no answer has been provided in the lesson falls in the same category; also adding un-necessary sounds like 'a' before a word can be confusing, Mauricio is guilty of that - BUT these are really minor things and do NOT occur a lot.
I supplement my learning with Google translate and spanishdict.com/conjugation.
I stumbled on an error with the software which was adequately resolved although I was surprised it happened.