They found that perfect sweet spot where the beeping is not annoying, but it always does it at just the right time. (edmunds.com)
It hits the perfect sweet spot for people who want a large screen to watch Netflix or do work with a keyboard attached, but it's not so big that you can't take it with you every day (ahem, 12.9 - inch iPad Pro) (businessinsider.com)
Whether tweaking product design or altering food items on a menu, finding the perfect sweet spot takes trial and error. (investopedia.com)