We've had two delonghi pinguino's & they were both fantastic. The first was a split system which was awesome & cooled a large living area well, the other one vented out the window & you added water to it, not because it was evaporative, but because it was designed to boost the refrigerator cooling.

If you're going to buy one, get a good, powerful one. Do not waste your time getting an indoor evaporative cooler, they are not suited to long hot summer days at all.