I torrented it and went through the entire German program through the advanced sections. You aren't going to be able to have an intellectual conversation in the target language after you've finished it, but you'll have a pretty good basic understanding of how adjectives, verbs, etc. function, sentence structure, and a pretty decent number of words to get you started.
I think people who go into it thinking that they'll be fluent after finishing it are looking at it the wrong way. It isn't going to leave you with a vast vocabulary, but it gives you the basic language skills and knowledge to pick up childrens books, magazines, etc. in your target language and at least be able to follow along with a dictionary to fill in the blanks. With that foundation in place you can continue expanding your vocabulary and understanding of the grammar a lot easier than trying to start by learning grammar rules and whatnot from a boring textbook.