We have bought this in December 2015 and it is slightly a long term review.
The built quality of the AC is very good. Both units are sightly big in size as compared to other ACs available in market but they give an excellent cooling.
Installation was well coordinated by Blue Star team .
Noise of the outer Unit is bearable and it is not too loud as some might have mentioned in their review. Given that it is a 5 Star rating AC, the power consumption is way too low as anyone could expect.
The AC runs roughly 10-12 hours daily and it has just added Rs. 700 ( +/-) to our existing electricity bill which is just so economical. We have installed the AC in our office and it quickly cools our office area of 250+ Sq Ft ( Cabin + Reception) in no time.
The cooling too is very powerful. Our suggestion, you can buy this AC without a second thought. Blue Star is indeed the best AC manufacturer and their service is excellent too.