Honestly it's not that bad if the building is made right. Especially old stone houses that also happen to be surrounded by trees are absolutely godly in these scenarios (the down side is the heating bill in the winter :P or rather that used to be the downside...). I honestly wouldn't have ever considered an AC a couple years ago, but now that summer means a constant 30°C I'm reconsidering. Like bro, 30°C used to be a HOT exceptional couple days, not the entire summer!