Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not for first-time Czech learner

The lessons go by very fast, with each phrase spoken only once. In order to learn, you must either have a super-human ear and memory, or you must listen to the CD 500 times. The CD might be a good review for someone who has already learned the language, but for the first-timer, consider the Pimsleur method instead.