Hard to be critical when the immersion of the world and the voice work, utterly blows you away. That said I could see the limitations, the gameplay is rather linear. If it wasn't for be drowned in the world in VR, my interest would have crumbled after 2 or 3 of the gate puzzles, or the set piece fire cinematics I'm going through with the soot god.
Even after over 2 years in VR though, that first cinematic where you drop out to the battle for the first time blew me away. The way Senua arches toward you in the blue haze is incredible, the whole sequence felt on another level to what I've experienced before. The performance is all that, the 1070 wasn't breaking a sweat in combat or otherwise. Combat itself had an epic feel to it, life size characters in VR coming at you is amazing, regardless of the 3rd person nature of it.
I can't speak to the experience of playing it through on a flat monitor, but I can't imagine it compares on any level to playing it through in a HMD. If your take on Senua is more the cinematic masterpiece, then you owe it to yourself to find anybody with a VR setup and experience it.