Reviewing the Whynter ARC-14S, portable AC unit.
Pros: It works well for the room size (~12'x15'x10'). Very powerful and cools effectively. Easy to wheel around. Intake and Exhaust hoses extend quite a bit, so you have a little flexibility in placing the unit. Maintained temperature well.
Cons: It's pretty loud. The light from the control panel is very bright and you cannot turn it (the panel) off. It is a big unit, and very heavy if you need to lift it.
Comments: It's a lot taller than I expected for some reason.
The thing to remember is that it's a portable unit. By default, they're not as good as a window unit, ductless split, or other permanently installed unit. However, the advantage is that they're portable. You can move them around, use it just for those few hot days, or move it to where you may need some additional cooling.
I got this to cool my bedroom at night so I can sleep more comfortably. My HOA doesn't allow window units, and I'd rather not run the central AC to cool the whole house when all I need it for is my bedroom at night. It's a bit large for the size of my room, however, the recommended room sizes tend to be optimistic. (e.g. a unit that says it's for 500 sq.ft. is not going to handle that much space except under optimum conditions).
It's noticeably louder than the fan I was using in the window to try to keep the air moving. I can still sleep with it going on as it's more or less just white noise, but if you're a light sleeper, or sensitive to noise you can forget it. The blue light is actually more distracting to me. It's nearly bright enough to read by in a darkened room, and there's no way to turn it off. However, that is easily remedied by putting a couple of post-it notes over the panel. There is no way to muffle the noise however. The compressor is louder than the fan inside the unit, so the fan setting doesn't really matter while the compressor is running. The fan by itself is reasonably quiet in the lowest mode.
The window kit that comes with the unit extends to a maximum of about 46". That was about 8" shorter than my vertical sliding window opening. The first night I filled the gap with a piece of cardboard, which worked OK. However, I was a little concerned about losing the cool air through the plastic/cardboard, so I purchased some rigid insulating foam board from the hardware store, and am using just the hose connection panel with the remaining gap filled by the foam. I would recommend at least using some foam insulating tape (not included) around the edges of the window kit for a better seal.
Overall, I'm pleased with the unit. The two things I'd wish for would be for it to be quieter, and have some way of turning off the panel light. If you're not trying to use it in your bedroom, I would think that this would be excellent for spot-cooling any reasonably sized room.