I'm honestly mixed. One thing I like about the 343 style are, to an extent, the lights. During Bungie's era, the Forerunners were dead. Majority of their tech wasn't having too much of an effect on the galaxy as a whole outside of the Covenant & UNSC adapting some of the tech for their own.
After Halo 4, with the awakening of the Prometheans & the Didact, it's like the Forerunners are still dead but their powers are reemerging. The previously lethargic tech is being revitalized, with more power visibly rushing through them.
Now that doesn't mean I think it's all great as the lights can be absolutely BLINDING. As for the physical assets themselves, I'm honestly not a fan. There's so much visual noise going on, wit takes away from any sense of majesty. The pillars of Requiem, that absolutely gorgeous scene in the second mission of H4 right before we grab a Warthog, is a fine balance between the classic style & a reawakening theme. The Guardians I hold as exactly NOT what to do.