I previously bought two of the Frigidaire 70 pint which uses about 700W. That one is also on sale at Best Buy for $200. One runs fine but one ran really loud. The compressor was loud and caused a lot of shaking noises. I'll be replacing the loud one with one posted in this deal.
Insignia 50 pint is supposed to use around 500 some watts. I wanted to save energy while running it all day.