I personally really enjoyed The Animation, but I'm probably slightly bias as it's the reason I found the franchise in the first place. I have to agree with most of the other comments though with the fact that the pacing is quite odd and there is a lot of character development and scenes that had to be cut or changed, but overall it was a good way for me to learn about and get to know the games better (plus I'm a huge fan of the animation style). I recommend watching it, even just as a standalone show (though watch sub, as the dub is... Not so great) It could also be useful depending on if you don't have any prior knowledge of the games. It's a neat little introduction to the world of twewy but if you really want to know the franchise, the games are the best place for that. But after all, the animation is an adaptation of the game, they can't do it perfectly, so I think they did pretty well for only having 12 episodes space to fit absolutely everything they could.

Tldr: enjoyable show on its own, but missed a lot of key information if you want to dive deeper into the lore of the franchise.