I live in TX so heat is extreme here. I don't like it hot but I don't like it too cold either. I keep a sweater or jacket in my car during the summer, as everywhere in TX has their AC way too cold for me. I have discovered I have a narrow range I'm comfortable in, when just sitting around and not working on some activity around the house.
Since I am bilingual, I speak Metric and Imperial, for you C and not F folks I provided conversions.
My home is programmed to be 80 (27 C) when I am not here, but the program has it cool down to 74 (23 C) in the morning when I get ready, it also cools it down to 77 (25 C) when I get home from work. If I am up and busy I will temporarily bring it back down to 74. 72 (22 C) is about the lowest I like it. When it is 98 (37 C) plus humid feels like 109 (43 C), 77 is very comfortable for me. I actually like the ceiling fan on and the air conditioning NOT too cold, but that is me. So while not saving me tons of money, the remote control, will allow me to better control the temp should I come home early or am staying late, or go out of town and forget to put the AC on hold. It is the going out of town that I really want the control, because coming home when it is on hold at 80 is too warm to unpack the car and get stuff done.
I have a 7 year old "Green Certified" home, extra thick walls, extra insulation, high efficiency AC. My house is 1 story and 2200 sq ft (205 sq M). They guarantee my AC/Heating costs NOT to exceed a certain amount of Kilowatt hours per month. It is written into my builders warranty on the house.
My bill, and remember this is south TX and it hot hot hot, was ONLY $85 last month. Having a well insulated house and and narrow comfort range makes for cheaper utility costs. My NO AC running NO Heat running Apr and Nov months bill runs below $45 a month.
I temporarily lived in an apartment, which was half the size, but poorly insulated with a crap central AC unit. Even at my temperature range it would run nearly 24/7 and barely keep the rooms cool enough, and oh yeah my bill that summer came to over $300 for a month.