Emerson Quiet Kool 6GC53
(Westfield, NJ USA)
For as long as I can remember, I've owned an Emerson Quiet Kool air conditioner. It's a through-the-window model, and though it's getting on in years, it has served me well. To start off, let me just mention some basic specs of the model.
It's a 6000 BTU air conditioner, with three different fan speeds. All of the controls are manual. Where I live, power outages do occasionally still occur, and if I'm not away, I don't want to have to worry about my air conditioner not turning back on when the power comes back on (As I worry about with my newer digital models).
This unit is very quiet, even when it's actively cooling the room I have it in. It isn't silent, of course, but that comes with the in-the-window form factor. The vents on this air conditioner are very adjustable, and I've set them to opposite directions to cool the room as efficiently as possible.
The unit very effectively cools the air, and I can't bear to set it on the coldest setting - I did once and it was frigid when I woke up the next morning.
Design-wise, the unit is pleasing. The front grille has an off-white louvered appearance that accents the frame of my windows. The expansion folds to seal the unit in the window are a bit frail, however. Over the time I've owned it, I've had to patch them with bits of duct tape, however these parts are high-abuse, so it's understandable that they eventually need replacement or patching.
Overall, this air conditioner has provided me years of dependable service, and while it's probably not the most efficient unit in the world, its analog controls allow more precise control of the settings I desire.