I did a lot of research before finally deciding on this portable AC unit.  I am very pleased with my purchase.  It runs quieter than my window unit.  Air blows cold and is able to cool my downstairs (~700 sq ft) without a problem.  I live in Hawaii and haven't need to empty the water yet.  The evaporation feature works well.  I haven't had a portable unit before, but the dual hoses seem to do a good job.  The window attachment went right in my large vertical sliding window.  I also have jealousy windows, but I haven't tried to use it in those yet.  The buttons on the outside of the unit and remote are easy to use.  Wayfair also did a great job shipping.  Wayfair was the only retailer I could find that would ship to Hawaii.  I received it quickly and was able to set it up by myself.