Product review (4 stars): and it works fine. I had a unit before this
I bought this unit for my bedroom, about 11x13.  I keep both doors closed, put it on auto function, and it  works fine.  I had a unit before this, that was 6 years old.  After using this one, it has cut my electric bill in half.  I am happy about that!  I also live in south Florida, but I use this unit only at night.  Some helpful info....the digital readout is clear, and I can see the temp from 6 or 7 feet away, and if I want...I can use the remote to change it.  There is NO drain on it, but that is typical for newer units.  It is a bit noisy, especially when you first turn it on, but becomes more quiet within 5 minutes.  I like the unit, would buy again, I especially enjoy the remote.  I can also add, if you shop around locally, which I did, I bought this unit for less than 160.  Also, while it is new and I am satisfied, this unit is appx 2 years old, and there are newer units, but perhaps more pricey.