This is awesome and Looks Great! Thanks for this!
Speaking on my own reasons to use UE4 over traditional rendering software. I prefer using unreal to focus on trying out looks and ideas. I feel like I have more time to generate multiple looks and feels faster using UE4. Then with very little additional effort I can capture out animations. Finally I can rapidly make client changes almost on demand. So my process working with clients becomes much more collaborative and I can go through a few rounds of changes much faster. Traditional rendering can take more time in the long run, although better results. But it all comes down to how well you have your pipeline setup.