Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not for complete beginners or intermediates

I was not very impressed with this program at all. I am a Korean linguist and I was hoping this would help to expand my knowledge, however, it is way too simple for someone with any prior formal language training. On the other hand, I noticed that it does not even teach the alphabet, a vital key to learning any language. The only reason it got two stars was because if someone could obtain training on the Korena alphabet, then this could be an excellent tool for beginners.