Instruct: Classify a given review as either positive or negative.
Query: Beware if You're Dairy Free: Doesn't Work with Soy Milk

If you're dairy free, be aware that this unit does not work with soy milk. It creates only a little froth that dissipates quickly. I called the company, which acknowledged this fact. Too bad it isn't made clear in the purchasing materials. We would have never purchased it.