I’ve used Butterfly Eco Cooler from last 3 years, performance of the cooler is as expected and reached to the expectation on air cooling and flow.
However, below are constrains observed by me.
It will get blocked if we fill ground water.
The life of submerse able pump is not last for more than 1.5 Yrs.
Cleaning is little bit tough job.
For me, the blower got repaired after the warranty period and pump not worked after 2 years.
Water will stench bad after few days of use.
There are other products available with in same price range, I suggest you to check with them before opting for this product.