If you're watching it because you have watched enough Urobuchi, Nasu, Narita, and Shoujo anime, then you're in for a treat.
Chaos Dragon is what happens when you take four really strong writers in the Japanese Anime/Manga/LN industry and let them go complete ham on their favorite tropes. Kogyoku writes a shoujo protag that's endlessly bittersweet, demure, and loyal towards the MC to almost a fault. Narita does his typical schtick of a supernatural yet goofy character that's on-the-ball, skilled and kinda flashy, but there to have fun during downtime. Nasu has his Fate protagonist that's a hero of justice, even if a bit of an idealist and not very bright. Urobuchi writes a disturbed assassin that manipulates or murder-hobos their way through everyone and everything. If you read the other works by these people, you know which of their prior characters they're lovingly ripping off to create these new ones, so while their actions may be strange, uninspiring, or unimpressive in isolation, they're great fun in their author contexts.
Basically, if you've been watching anime for a while and like this particular circle of writers, then by all means, go watch it. Otherwise, go watch some classics and come back later.
