I have a big living room which can be only partially closed (open passageway), so I was told to install a minimum 2 nos. 1.5 ton ACs. I researched and bought the Mitsubishi 2 ton back in October 2015. Set me down 51K. But, worth every penny spent on this beast. Cools the entire room in 10 minutes even in mid afternoon.
Like Vabs said, bit costly than the run of the mill ACs, but totally paisa vasool.