This been a used review of my general window AC 1.5 ton. I was been using this one for a year now till now havnt faced any technical issue with this A/C .get cooled my full room in 15-20 minutes .the working of the Ac is also very easy not much buttons on the pannel .when the ac gets start initially there is a sme sound then its very quite and calm .only I think 4 times I just refilled the gas this was only the issue faced it is not an issue because for all other ac we have to refill in between.so plan to buy a window ac trust me go for this brand.the company offers a 1 year manufaturing warranty.