Window ACs are known to be noisy and very stereo typed. There is very little engineering put in by most companies in improving the technology in Window AC. General approach by all companies is to make something very cheap and push large quantities in the market to make as much whatever profit possible in the consumer boom that we see in India today. Hitachi ACs have been the costliest ones in the Window AC market in India while some of the cheaper brands are as low as 50-60% its price. What is so special in the Quadricool AC, one may wonder. A distant look itself reveals that it has air-supply from both sides and that itself gives faster cooling in the room and saves electricity cost. A closer look reveals that it is one of the most silent Window AC - you can really experience it. This is possible because of the special design it has. One advantage I could find over conventional Window AC is that the Quadricool TM model has two fan motors which give Dry Mode which is not available in any other Window AC. For those who want to use it at residence, it has the Kaimin mode for night usage. I normally set the AC on 25 degC with 3 stage Kaimin and the AC keeps maintaining room temp with a gradual increase of 1degC every hour. It saves a lot of electricity and does not over cool unnecessarily in the night. If there is a Window AC so feature packed and very less on running cost and has the cutting edge technology then certainly the manufacturer will definitly find many very discerning buyers who would not mind paying the price for the best even in a time when people rush for discount sales and cheap products. Quadricool TM is definitly a value for money product.