Ya, it's interesting to see how other people work. There are times when I'll wonder to myself why he's doing what he's doing, and am usually amazed by the result. I've also learned that I'm far too picky. I would probably take up too much time making sure everything was perfect when it doesn't need to be. I'm also learning a lot about lighting placement for interiors and how light reflects off different surfaces.
He's also learning from me. My LumoPro speedlights and
Rogue Grid are being used on several occasions to highlight furniture pieces that are difficult to reach with the main lights. He's actually so impressed with their performance, he's going to pick up a few. We're also using my PocketWizards to trigger all the lighting because they have better range than his triggers.
At the same time, it's nerve wracking. He's using brand new (we unwrapped them on day one) Profoto monolights, which are about $2100 each. Combined with all the other gear and working in very expensive homes with breakable stuff everywhere, you have to be very careful. He scratched a Chippendale dining table today and will have to pay to have it repaired. Just glad it wasn't me. That thing costs more than I make in a year.