I bought 2 Ton Hitachi Summer QC Window AC

Just bought this
http://www.homeshop18.com/product/loadItem?item…

Any reviews on this?
Any recommendation for stabilizer?
How long will HS18 take?
n any idea about Hitachi services in Gurgaon?

BTW this was for Rs. 31,078.00. Steal deal. Correct?

EDIT:
What will be my bill if I use it 5 hours a day? Using it for main hall.