Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Easy to use, clear results

This kit was easy to use, including clear instructions and shipping recommendations. I paid the $10 extra for expedited processing and received the results via email the same day that it arrived at the testing facility. The report was clear and included follow-up instructions. For the peace of mind this provided, it was well worth the small price; I'll be repeating this test every 1-2 years as recommended to monitor the radon levels in our home.