What does the 'Eco' mode on the Kia Ceed do?

I've noticed an 'Eco' mode on my Kia Ceed's dashboard and I'm not sure what it does. Can someone explain its purpose and if I should be using it?

The 'Eco' mode on the Kia Ceed helps to improve fuel efficiency by adjusting the engine and transmission response. It can also adjust the air conditioning and other systems to be more energy efficient.

In my experience, using the 'Eco' mode on my Kia Ceed has helped to save me money on gas. I would recommend giving it a try to see if it works for you.