I once experienced Superliner coach bathroom where the sink basin was detaching from the top of the counter, with horribly failing adhesive, such that water was splashing out of the sink and down into the pipe/mechanical cabinet below--and when the train rocked and rolled, the water literally flowed over the top of the sink and down into the cabinet!
It was shockingly bad! Just embarrassing. Multiple inch gap at worst between the sink basin and the counter. My most recent (still not renovated) Superliner coach bathroom experience was better, but still terrible overall.
I had no idea they were doing these bathroom renovations, so the first time I set foot in one of these renovated cars I will be shocked with joy! The status quo is honestly beyond embarrassing at this point, so at least they're doing something.