Instruct: Classify Amazon reviews into positive or negative sentiment
Query: May seem pricey, but it paid for itself.

Have been using this product over the last 6 years on my four large breed (rescued) dogs. Two of my dogs started with severe allergies & one had alot of nutritional challenges when I began using Nupro. After three months, the difference was tremendous. The price of the product seemed high, but I wasn't spending any for allergy visits at the vets. Not having my dogs on the recommended steroids for allergies made it worth everything.I switched to the Silver Joint as help for the progressive dysplasia in my oldest dog. Three of my rescues have moderate dysplasia (elbow and hip) and one has a badly healed fracture with arthritic problems. Again, WOW. We all walk two miles a day, even years after the vets believed my oldest would be crippled and in constant pain. I feed a natuaral food and use Nupro supplement daily and after 6 years of glowing annual vet reports, wouldn't have it any other way.