We bought this IceMan Clear3 for our granddaughter’s use. Ordering from Cold Therapy was easy and they delivered the product on time to their home. She has ACL surgery upcoming. We have had the same unit for at least a dozen years, and it is currently being used as therapy, due to knee replacement. It has been used by others as well over time. Freeze twelve 8oz water bottles (it will hold six bottles...take six out, put the frozen six in for the day and refreeze the used six for the next day) to keep the water cold, and it allows you to monitor the water line very clearly. I would recommend this product to anyone facing surgery of any kind in joint areas, certainly with your Doc’s approval first. This is a quality product, thus the reason we bought the second unit for use by our granddaughter. Based on our experience, you should expect quality results over a period of years. Hope this helps you with your decision.