I am very happy to share my review about my cool product which I have bought more than six months ago.i did not experience any problem till now.it does not make any noise while working.i am very happy for that.it cools the room even in hot summer.it is very ecofriendly.symphony service is also very responsible.it is very worthy.i am very happy to suggest my cool product to my friends.it did not make any disturbance in running.it is worth feature which is not present in all.so friends it is worthy to have a product.