I didn't read every post so I might repeat what some others have already stated.
I have used a few of those steam showers, they look super cool & that's about it. I barely fit in one of them & I'm not a massive NFL lineman.
My favorite type of shower is one that I built on a remodel job in a buddies new-to-him house. I ripped out the old single bath tub that looked like it was made for Napoleon. I moved the exterior wall out 3'. Built a bench seat across the entire back wall, I had both he & his wife sit in different chairs to see what height & depth they wanted the bench seat to be (my buddy is 6'4" & he can lay flat on it). Installed a combo shower head on the wall (hand held wand & fixed large round rain style shower head), on the ceiling I installed two large round rain style shower heads (I think they are about 10") in the ceiling. The water flow/temp control valve on the wall has a separate 4 position valve (water flow off, wall mounted shower head, ceiling mounted shower head & all shower heads flowing water). When all of them are on flowing water it's like a drive through car wash

It's floor to ceiling tile that they picked out, the two walls facing into the bathroom area is a frameless glass enclosure that a local glass company ordered after I supplied the dimensions. 10' ceiling & the floor area is 8' wide X 7' deep.
One of these days when the ole lady & I build a house that is what will be in the master bath
