I heard Koreans use metal chopsticks and bought pack home. Took some time to learn how to use those but so much easier when I can put those in dishwasher.
Is this what you mean by Korean spoon? What is better about them? I really love the ceramic spoons you get with Chinese soup, those are great for stews.
Long handles prevent the part you actually hold from getting hot and they don't fall into the bowl as often when you're eating soup from a bigger bowl.
The length also allows you to reach things further away when eating family style meals.
The bowl shape is optimized for eating soup & rice. At the same time, bowl is not too deep that it is uncomfortable to eat non-soupy things.
Being metal lets you use the spoon to cut and scrape things, ceramic spoons are harder to use for that purpose because they're typically thicker and more rounded.
Yeah, the Japanese ones are the easiest to use, but if you want to show off then using Korean ones is the ultra hard version. You get used to it though quite fast.