HDRP vs OTOY Octane

Hi,
I’ld like to collect some opinions about the Unity intern HDRP and Octane. When du you use what? What are the pros and cons? Are they combinable?

Honestly. I havent have any good experiences yet. The shader system seems good and dandy. But i have trouble with attaching the Octane/PBR override material to objects without getting pink objects. I have no clue how to solve it, and it makes me sad.