To start with putting you in perspective, I happened to come from the side of the world that grew up with this and many other WMT shows throughout their childhood, so first and foremost, I am biased with nostalgia. Ironically my mother also grew up with the 1977 version throughout her childhood, That aside, going into this show with no background info on the source material is perhaps the best way to do it, just like I did. The Story is simple, a child is searching for their mother and the hardships of reality. someone else has gone into details about what circumstance theshow had to go through while under production, so I won't bother with commenting on that. I'll just say what I find most enjoyable.

In short, it's a humbling experience for all children and humans alike.
it depicts children in all sorts of real-world hardships, that fortunately I saw none of it, but would know a one or two irl that had something in common. WMT has a way of raising you to be mindful of everyone's hardships - even your parents. it's not an exaggeration that they shaped the human I am today. and I am ever thankful that I was fortunate enough to be raised by these lovely people.

Remi is an easy watch, Once you set off on to the journey, it becomes episodic stories, easy to skip ahead or miss or watch background. Therefore the watch / and rewatch is never stressful, you can easily cherry-pick your episodes, and you won't lose much contexts - except for the occasional important ones.
i myself have rewatched Gaspard arc over and over and over again. - okay maybe I'm a sucker for little Mattia, can you blame me? -

The Music is otherworldly - and while your at it, the Arabic dub opening and Mother song are worth a listen even if you can't understand them- the Jap Op and ED are just the most beautiful things I've ever heard. The whole show's ost is just beautiful, I get the urge to just put the whole show in the background as I work just for its sounds.
and One of the little blessings that I didn't notice how much it irked me until I saw how Remi did it well, is how the ending of an episode blends seamlessly into the ending, no jarring sudden shift in tones, no Sad moment only to end with a happy ending. and I always find it tasteful how they'd let the music start playing as part of the ost and then when the moment is right the lyrics pick up from whatever point the music is on... it's a little thing, and Remi isn't the only show that does it, but it's the accumulation of the little things that make things amazing.

And that's my verdict; Remi, Nobody's Girl, is a masterpiece in the little things that it DOES well.
Perhaps the story is repeated and the 1977 ver does it better, perhaps the art is average ( but still beautiful in my opinion), perhaps the characters have room of improvement in comparison ( and yes i agree the villains are understandably not given room to be better-written characters), But All in all, it's enjoyable enough for me to come back to it frequently even after 23 years to enjoy it. and that's what matters to me.