It could be just me, but to the light domes don't look as good as using an ambient/GI sphere for the lighting...To me it looks more realistic, like real world lighting.. Theh light domes look beautiful and are amazing renders, but they don't look natural, the lighting is too perfect. The stuff I've seen of AS' using ambient spheres looks incredible, it's what made me look into it, and now I'm a believer....