Hello! I've recently picked up learning Spanish because I work with a ton of dudes from Mexico. How much can I reasonably expect to learn from this app? I looked at their "curriculum" and it seems pretty short compared to what I think I'll need. What are some resources beyond "talk to your coworkers", that will put me on the right track?
This method may be too slow for you. If so, use Pimsleur's lessons and find a good textbook as a supplement. Go online to find Anki and use that website to grind the new vocabulary you learn (again, using the words within the context of real sentences and real phrases - not Google Translate, but those found from native speakers).
I don't mean to knock the method of Duolingo, but the method I am talking about will help if you are ever interested in achieving fluency or conversational level in any future languages, including Spanish