Good:

• Accurate ColorBleed from Diffuse
• Ambient Occlusion (as opposed to Screen Space Ambient Occlusion)
• Stunning GI from Emissive materials
• Specular tracing offers an interesting alternative to SSR
• Looks fairly good on low-settings/low-performance impact
• Can look incredible on high/extreme settings
• Excellent tweak and management controls
• Fairly good range before quality degrades

Bad:

• Requires recompile of Master Materials for Voxelization
• Recompiling Master Materials takes longer than acceptable.
• Poor stability when scene includes animated assets.
• Prone to small lighting errors even on fully static scenes.
• No GI from lit particles.
• Does not support all Material types.
• Specular tracing yields rather low resolution for reflections.
• Small objects still need SSAO and SSR or will ‘float’.
• Can be tricky to tweak for scene-specific circumstances.
• Separate Unreal Branch, lagging behind core developments.
• Slim chance of ever getting integrated into main branch.