Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great Stuff

At the age of 40 (because of my family history) I had my first colonoscopy and they found 3 polops. My doctor said I would not have made it to my 50th birthday and put me on some expensive (propietary) fiber pills. I found this and took to my doctor to see if I could use this instead. With my doctors blessing I have used this for 10 years now and I am happy to say I have made it to 50 and am happy that this gave an affordable alternative to what the doctor offered.