Simple, easygoing and a friendly watch. It's casually funny, it's not a show to bombards you with 10/10 jokes on top of jokes, it's a nice easy story to follow with some pretty good animation, art and direction and it doesn't take itself serious at all (well it does get serious and melodramatic and dramatic in some parts), it is a very fun watch and great to just chill. Also, the music adds to laid back atmosphere and is very pleasent.
The mandarin voice actors did it the best job in terms of voice acting (obviously), in my opinion.