Hello friends how are you I am technician of Ac and I know the O General Window ac is very powerful ac.And it’s a very relliabe and so nice cooling the O General ac spair parts not available but its so much powerful a.c therefore and also good automatic p.c system.its we used maximum 1 or 2 hours we used the room so cool.its have a good thermostat and a very nice sparparts just like a huge compressor out fan and ni in fan.its have very good qualities it’s a good this is very old model but very nice and And truly I think this 15 years ago maximum old ac we have but very good ac