I got one about 10 years ago to have a wet room installed. Council used a bunch of monkeys from Hartlepool to do it, absolute disgrace!.
I ended up kicking them out due to the wiring not being to code (Kezo would have had a fit if he’d seen it!), council eventually agreed it all had to be re-done but they still made a complete rats nest out of it.
Few years later we were completely flooded out by a massive leak from next door, every room had to be re-floored. My Housing Association sent their best plumber out to find the source of the leak, he took one look at the wet room floor and said “that’s got to come up, it’s not been done properly!”. Sure enough the drain from the shower was lying just under the shower tray and the joint had already failed so there was waste water pooled under the shower tray etc. They did a really good job and even let me move the shower drain pump and its controller and re-wire them properly.
Please excuse spelling/typos. Apart from being a clot it turns out I had one on my cerebellum that's now causing various problems!