That looks like a nice one. I have ceiling fans in both my houses and they make a huge difference. I use my a/c way less since I put them in.In fact I barely turn it on.
I have a house in the high desert, and it get plenty hot up there. It has no a/c and I thought I was going to roast with just a swamp cooler. The swamp cooler did OK, but with the fans, it gets downright cold in there. I have to turn it off. Or get a jacket.
If you have high humidity I'm not sure how much that might effect the efficiency.
I also put in an attic fan. I turn it on early when it's cool and it sucks the hot air out. Then close things up and turn on the fans. Works great.
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