The unit was easy to install and will be easy to service.  I am pleased with to operation of the 14,000 BTU Whynter Dual Hose AC.  I had a single hose unit and that unit would pull warm air into the house though the walls.  This Dual Hose unit does not do this.  Saves on power usage in the long run.  U have had this unit up and running for about a week now.