I am a native speaker. And I find German to be a very ugly language. Pronounciation wise. Compared to French or English. It sounds like someone is constantly having a quarrel with you.
There's this fun video from Easy German, where native speakers (Austrians in this case) express their feeling of uneasiness when flirting in German. As in, the German language not being the sexiest.
Weaknesses can become strengths. Sometimes you want to have a quarrel. When French people quarrel they must rely on changes on pitch, cadence and volume because otherwise it sounds like they are ordering baguettes at the boulanger.
Is this the game ‘Tell me you've never visited Italy without telling me you've never visited Italy’?
I invite you to listen to Danes conversing before forming an opinion on German pronunciation.
German has harsh sound. But in terms of quarrelling, I find that Korean sounds like someone is complaining all the time. But then again I have never learned Korean, so my impression would surely change.