In the 44 years that have lived in this trailer this is the 4th window unit installed chose this LG over a Fredrick because of the advertised quiet running and this is a accurate claim from LG all other features work well I get average 6 to 10 years out of window unit because I remove unit out of sleeve at least once a year for through cleaning, also install window screen over intake grills held in place with magnets for easy cleaning this prevents bugs and debris from getting into internals remains to be seen if this dual inverter tech. is reliable over many years.