Instruct: Classify a review into positive or negative sentiment.
Query: Sonicare Elite 9500? Yes, please...

Gum massage is outstanding. My dental hygienist noticed a difference after 30 days. The 30 second timer keeps you on track, but can also be turned off. With a little practice, you can pucker your mouth just enough that the mirror and sink don't receive a fine spray of toothpaste twice a day. I love it.