Here in the land of paradise (South Florida) where the a/c runs 24/7 this unit saved the day and well, night.  The central a/c took a turn for the worst and we decided on window units instead of spending the $$$ to replace.  It's a bit loud but once you get use to it, you don't hear it or rather you just sleep through it.  We've only had for a month now and so far no complaints.  We did have to clean the filter for the unit that's on the south side of our home which was a breeze.  We elected to vacuum it with our hand held Shark.  It took all of 2min if that.  The remote is wonderful to have.  I gave only 4 stars because we've not had the units long enough in my opinion but we're pleased so far.  Also, we don't run the units all day and night but there have been a few days where they were on more than 12hrs.  So far so good!