As told o-general is the father of all Ac.It has a quiet good cooling system than other acs.Working capacity is very good and gives you a cooling effect in few minutes.Need not to wait for hours for cooling.One of the best air conditioners which is already famous and used worldwide.Service is good 1.5 ton of weight makes it heavier to look.Lookswise it is simple and elegant but performance is harder than its looks.No external sound effect and a really satisfying product.