The novel is pretty decent, if you want the typical reincarnation to ancient china setting.
It's still entertaining and has its ups and downs, and has more of a backstory than the Manhua.
Reading the Manhua, it feels kind of rushed and the characters kinda feel like they have a different personality, like they tried adding a comical twist;
Especially with the ML. He has a more serious feel, still doting but more of your typical 'cold, cruel ml' personality.
BUT, having read up to ch 66 I think the Manhua is still fun to read with the novel in mind.