Product review (5 stars): Good Product - recommend it. No problem after 3 years.
Good product.  Installed in March 2012 with new washer / dryer and no problems at all.  Ordering a replacement set now because the recommendation is to replace every 3 years. Cheap insurance.

Regarding some reviews here about corrosion, I would be looking at the water chemistry or electrolytic corrosion as a cause. The fittings on my washer hoses plus one hose to the dryer show no signs of corrosion and we live in Florida where water chemistry can be an issue.