Blue star split ac is good air conditioner. It works pretty well .according to me its btter brand than VOLTAS OR ANY OTHER BRAAND.it has COPPER COIL compressor, which works well along the years . with no tension you can buy this product.build quality of this product is all very good with many specifications and different modes of cooling you surely will enjoy it in blazing hot summers.talkin about service .the service mans of blue star knows their job preety well so you dont need to take any tension bout service.thank you