I will ditto eveyone's comments who has had one. My sister who is head Nurse in a Endo/Colonoscopy unit of a major hosptial forced me by gun point (well almost) 15 years ago for one. Saved my life -- been getting one every two years since - seems I keep on growing those bad boys. -- If your at that 40 Mark and love your family and life -- ITS A MUST DO -- !!!!
