You deserve to sound like a native.

You not only know the language but you know the culture too.

Showing off a little wouldn't hurt anyone.

You want to speak colloquially, even if you were almost going to fail that language class in high school.

You can express yourself with fewer words. Less is more and you are more with idioms.

You don't want to mumble in front of native speakers, you want to speak confidently, using rich vocabulary and         funny or delicious idioms.

Idioms are so engraved in languages that native speakers use it without noticing. Become one.

You will definitely impress a lot of people.

When a non-native uses an utterly native idiom, everyone laughs and appreciates it! Just try and see!

Expressing yourself is a piece of cake and you put a cherry on top by using idioms.