We did a master bath remodel this fall. We removed the old bath and used the extra room for a larger, walking shower.
A few notes:
Even though it's open, I don't feel cold in it - see comment about heated floors below, they keep the room warmer than it would be otherwise during shower times. It's an outside wall, but it's well insulated.
We added the grab bar for safety. Looks OK to me.
I don't use the extra wand, but apparently it's great for cleaning.
We had a bench across the back in the old shower, but the new one didn't have an obvious place for a built in one, so we have a little teak table in there. Seems to work OK for us so far.
Our tankless water heater was already setup for a recirculation loop, so we had them set that up. Now instead of waiting for the hot water to make it from the basement on the far side of the house (why did they design the house that way!) we just turn it on and get hot water. Sometimes it's the small things in life...
We added heated floors too. We love it this time of year. It's on a timer and warms up before DW gets up in the morning and before we go to bed. It's turned down in between. And it's off when it's not needed. There's also an app for it, so if DW is awake early, she can turn it up before she gets out of bed. I think it's amusing that our bathroom floor is WiFi enabled. Oh, the heat is not in the shower - that's warmed by the water flow.
I"ve been wanting heated floors since I experienced them in a ski lodge. DW was skeptical, even mocked me a bit ;-), but I insisted on it. She loves it now.
We don't miss the old bath one bit. Rarely used it. And the kids' bath still has one so someone buying the place will have place to bath small children.
We had to ask them to add the hook by the entrance of the shower for a towel. For some reason lots of hotel showers don't have a good place to put the tower so you can get it easily without walking - and dripping - all over the bathroom.
Finally, the old tub was in front of the window. It was always a pain to step into the tub to open/close the window. With the tub gone, we upgraded the window and it now has a built in shade that raises FROM THE BOTTOM. Makes it easy to have privacy and still get natural light and see outside.