Blue star AC is very good air-conditionor. Below qualities can attract the buyers:
Fast cooling
Economical, Iow electricity consumption.
Automatic start and stop, scheduling.
Low maintenance
Service centers available in major cities.
Very good after sale service.
I have 1 ton blue star split AC for my small room and it's almost 2 years, I am using it and have no complaints. You can rely on blue star AC.
Over all very good product with the good after sale services.