Symphony diet 50T is the best Air Cooler. I am ysing this product since 2 months. It is very nice air cooler. It is slim and beautiful. I think this is the most trusted company of all other air cooler companies. This company air cooler is not problem well because its cooling capacity is very high han any other AC cooling. One of the other facilities is available service centre across in india. My friend bought this air cooler. But with in few days he had some problem regarding the cooler so he complained to the company and the problem was solved within 3 Days. So, I have satisfied from this product.