Easy install and very quiet running.  This unit replaced an older Whirlpool unit with the same BTU rating but the old unit moved more cold air so I wish I would have ordered the next size up.  I've had this running 24/7 for three weeks now and no problems whatsoever.  Easy filter to clean.  I do wish the louvers could be positioned so the air pushed down a little more as my unit is mounted high on the wall and the area I want the air to flow is well below the direction it points.  If this is a concern for you, look at the photos of the unit and you will see that the air is directed straight out or up somewhat and not down at all.