Let me go ahead and preface that I'll use the original Digimon Adventure series as my main comparison. Despite me really liking the Digimon franchise, I don't feel any attachment to Adventure 1 or 2 since I was too young at the time to even understand it and my Digimon introduction was basically left to Tamers and Frontier. Having finally watched the original series only about 2 years ago, I don't think nostalgia should really play a role in my opinion of Digimon Adventure:. Also, I'll not judge this anime as I would most other anime since I think it would be unfair to compare an anime intended for younger kids as I would one intended for older kids and adults. So with that out of the way let's get right into it.
The Good:
1. Adventurous - Okay, yes Digimon Adventure: is Adventurous *ba dum tss* in the sense that they weren't afraid to explore concepts that weren't explored that much in the original Digimon Adventure series like digimon eating other digimon in order to digivolve or them breaking the mold and creating new ways to digivolve.
2. More digimon - To be fair, the original Digimon Adventure series only had so many digimon it could use and they created some specifically for the anime. But I'll have this as a positive because it had diversity which is something that lacked in series like Digimon Adventure Tri. I always thought it was weird how, in a world that is supposedly inhabited by digimon there were forests, jungles and deserts without any digimon and when there were it was always the same ones. That's not how an ecosystem works.
The Bad:
3. Character Development or, may I say it , the lack of it - The character development is basically non existent, that is, for everyone except Tai. I'll talk more about it in the next point but Tai is the only character in this series that seems to get some attention. Not that I was expecting them to give the same amount of attention to every character but it seems crazy to me that even Yamato has been relegated from rival/counterpart to sidekick. Not even the digidestined digimon seem to be getting that much attention. It's like it expects you to have an entry level knowledge of the characters, it gives little to no backstory and their personalities has been boiled down to MC, Cool "Rival", Brains, Main Girl, Brat Girl and Scaredy-Cat.
4. Writing - "Our expectations for you were low but holyfuck". I know this is a kids show and knowing how low the bar for kids shows has been lowered in the past years I wasn't expecting anything great, but goddamit this was worst than hot garbage. This anime makes the original series feel like One Piece, that's the level of depth were dealing with this shit. Don't know what to do with a character? Just say they're occupied with idk being in a hot spring or collecting gems and now you can just ignore them until you need their digimons to evolve into the next form to catch up to Tai and Agumon so that Agumon can finally digivolve again to Omnimon to defeat this enemy that only Omnimon can defeat.
5. Art - Again, I understand this is a kids show and that they were trying to recreat the original artstyle but that doesn't mean you can just regurgitate the same animation 21 years later. First of all, it doesn't work because you're using different techniques. The original kinda worked because it was still mostly hand drawn, but computer animations simply can't achieve the same effect. The way the skies and the background used to be colored gave a otherworldly feeling that made sense in an isekai like Digimon Adventure (yes Digimon Adventure was an isekai, let's go mai boissss). Now, you look at the background of Digimon Adventure: and what you get is blue sky with no feature, just blue and boring. Second, the animation is trash. Apart from the first 3 or so episodes and some "boss fights" episodes, the animations is just still images with lip flops and movement shots with very few FPS going on for half a minute each. How is your animtion still the same as it was back when the original series came out. If you're using computer animation then get a proper animation right. A good example of how you can achieve the same feeling as an older kids show without putting the animation in jeopardy is Dragon Quest (2020). Does every episode have top tier animation? No. But is it consistently good? Yes. Did it sacrifice the artstyle? Nope. A media franchise as big a Digimon shouldn't be struggling to make a decent anime, let alone one at the level of Dragon Quest (no offence meant to DQ).
The Stupid:
6. Koushiro is a hacker - If I remember well, Koushiro is supposed to be 10 yo right? Then please explain to me how the hell is he hacking missiles and satellites. It makes no fucking sense. As ridiculous as the original series was, it never made Koushiro out to be some super genius that can hack into any computer system. Also this combined with the lack of character development has made him just some kid behind the computer while Tai, Yamato and Sora solve the problems.
7. WHY DO THEY RIDE THE DIGIMON WHILE FIGHTING? - I swear every episode I get this much close of just quitting for how stupid this is. I can get behind Yamato riding Garurumon while fighting bu why does Tai need to ride Greymon every damn episode while fighting. It only puts him in danger while making Greymon having to worry about him while battling. What's even more ridiculous is that the digimon do backflips at high speed with their digidestined on top of them without them falling. It makes no sense. It's stupid and I hate it. This didn't happen in the original and I don't remember it happening in any of the series.
In summary, Digimon Adventure: is a reboot that makes promises to achieve a lot while delivering nothing. Please don't waste your time watching this husk of a show and just go watch the original.