Five years ago I built this, and it's worked well, but is old and falling down now.
The replacement is more minimalist and like any second system tries to improve on the design of the first. No wood to rot away, fully adjustable height. It's basically a shower swing, suspended from a tree branch.
Probably will turn out to have its own new problems, as second systems do.
It's gravity fed from a spring, so there is not enough water pressure for that to be a problem.