LOL That was a pretty big shower and the only reason I knew it was one is because the guy said it was and I noticed the lip on the basin.. It looked like you could fit ten people in there.
Now I've built a few in my time and I understand that there are some intricate ones. I have a plumber friend that actually has 16 shower heads in his. Why? I don't know but that's his business, not mine. They are all not like you would imagine a normal shower head to be, just to clarify. They are basically glorified water valves that shoot from the sides and the top kind of like pool filter valves.
Did you catch my post about the window in the thing? LOL I swear I'm not going to lose sleep over this any longer.