I'm not up on the workings of walk in showers. Sound good if one can afford it.
When I had 1st knee replacement, GH put grab bars in the tub.When I had 2nd knee done, he added 2 more,including a long one on the wall.3 mos ago, I had 1st hip replaced. Poor guy...was so scared I'd fall. Then we saw an ad on tv...where they cut a step into side of tub tub.Looked into it & the man we talked to was putting doing it in a new nursing home, so we could see it.
Decided to have it done & works great.I can turn around when using the tub shower, have a flexible hand held shower head that has several diff choices with a long line.
I have room for a shower seat if/when it's needed.Works for me & DH thinks it's way safer than having to step in/out of tub.Here's a pic.