After a one year of using it I can say that this portable cooler works so nice during the day, but at night is terrible noisy. Anyway I gave it four stars because it is easy to use, easy to clean and the air is clean and fresh.

This cooler is mostly a glorified fan with the ability to provide minimal cooling in low humidity environments (< 50%). Once the temps and humidity go up to around 80 F (or 27 C) it doesn't seem very effective and an A/C would be better. However, it's a lot more energy efficient, compact, quieter and portable than an A/C so it would be useful in smaller spaces or wherever you can't vent exhaust out a window. There is also a large capacity reservoir which make it convenient to use for a long time (e.g. 1-2 weeks with regular use) without having to refill it. The remote makes it easy to switch the fan speed (low, med, hi) and activate the oscillating louvers to provide more fan coverage. I used this in the PNW where humidity hovers around 45-55% indoors the summer and was useful when temps were below 80 F / 27 C. It's also useful for ventilating small rooms or areas where an A/C wouldn't be appropriate (e.g. no windows).

We have not been able to use this properly, it doesn't really have any impact on the room temperature even for a small room or 100-150 sq feet. We didn't use it for a long time and couldn't find out during the returnable period if we could return or not. It just turned out to be a complete waste of money. Also filling and getting water in is a hassle as well.

Not so impressed, thought it would be more capable of cooling down a small room, would recommend an AC instead

It's nice it gets cold and it's not loud and a good price