I anticipated this would be disappointing given the negative buzz surrounding it within the Scooby-Doo fandom and the critical reviews online, but you really have to experience it yourself to grasp the frustration fans felt while watching it. This is easily the most grueling show I’ve seen all year. The decision to have Scott Menville voice Shaggy seemed odd from the start. Whenever he speaks, his voice sounds more like Teen Titans Robin and a parody of Casey Kasem's performance than a natural fit for the character. Still, I don't blame him; he needed work after Teen Titans ended. However, those responsible for the show who disregarded Casey Kasem’s one request deserve criticism. As many know, Kasem didn't voice Shaggy in the first three direct-to-video movies because of a Burger King commercial that went against his wish to have Shaggy be vegetarian like himself. He did return for What's New Scooby-Doo and some later direct-to-video releases. Kasem appears in this show as Shaggy’s uncle, seemingly just to include him somehow. I've already written a lengthy explanation of my issues with the series, and I haven't even discussed the actual show itself yet. The biggest problem is that it completely abandons the mystery-solving formula in favor of something else entirely. My criticism of What’s New Scooby-Doo was that it didn't stray enough from the original. While I understand the “if it ain't broke, don't fix it” mentality, it ultimately felt too similar to the established cartoon and failed to distinguish itself within the broader Scooby-Doo universe. Get a Clue!, on the other hand, feels less like a Scooby-Doo show than something akin to Inspector Gadget. The franchise needs to find a balance—maintaining the core concept of a Scooby-Doo show while also forging its own identity and avoiding feeling like a rehash. Shows like 13 Ghosts and Mystery Incorporated successfully achieved this, becoming highlights in the franchise. Conversely, the weakest entries are those that don’t even attempt to strike that balance, feeling more like a product than a worthwhile addition. I'm thinking specifically of Scooby and Scrappy-Doo (1980) and Get a Clue!. At least Scrappy's character improved later in the series; at least his annoying cowboy segments only lasted seven minutes. AT LEAST SCRAPPY-DOO HAD ONE ANNOYING RECURRING CHARACTER FOR A LIMITED TIME!!! Agent 2 in this show might even be worse than early Scrappy, and at least he wasn’t relegated to making burp and fart noises. The robot butler isn't much better; I dislike him. He has a decent gag about once every fifty attempts, which pretty much sums up my feelings. Also, the recurring villain concept doesn't work in this franchise (unless it's handled well), as it’s always been about standalone monsters, and the villain's appearance is also off-putting; I genuinely dislike the character designs. Scooby and Shaggy look acceptable, but the other 80% of the characters are awful and visually unappealing. The backgrounds, however, have a unique art style and texture that I appreciate. There’s even a running gag about the villain being struck by lightning if he steps outside—but in one episode set on a cruise ship, he's perfectly fine, so the gag feels pointless due to its inconsistency. I don't know where else to bring this up, but the twist involving Uncle Albert is incredibly disappointing. There was no indication throughout season 1 that he was secretly working with the villains, and it seems like something they just invented for a dramatic conclusion. That’s about all I have to say. It only ran for 26 episodes, but it felt like an eternity. It's also exceptionally irritating and feels disconnected from the overall franchise; even setting aside its Scooby-Doo connection, it’s an irritating and ugly experience to endure.

Source on TMDB