Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Sparkly clean!

In my opinion, Ajax is a tried and true project. It gets the job done, the "old fashioned" way. Even with all of the new cleaning products out there, I seem to get the best results with Ajax, scrub brush and a little elbow grease. I used it in my shower to get that pesky mold out of the grout. Just a sprinkle of Ajax, a great grout brush I also got on Amazon and a little water and presto, the mold was gone and I was more than pleased! Great on toilet bowls too! Would recommend to everyone!