I just received mine a few days ago!

I am excited to have it and start using it but I would also caution people interested in it. It is currently a little rough around the edges software wise but I’m optimistic it will continue to improve with time.

I am personally glad I opted to support this project and while I don’t think I’ll be able to contribute to code I do hope to at least provide beneficial feedback and end user diagnostics.

They do not work well in already humid environments but in a hot and dry climate they do quite well. It absolutely does add to the humidity (obviously) but speaking from experience I’d rather have a evap cooler than not if my AC is out.

The largest difference in utilizing one over AC is that they rely on airflow so you need to actually ventilate the area you are cooling as compared to AC where you want a sealed space.

The main driver is power efficiency. Only thing they are doing is running a small water pump and a big fan.