It's worked great for 2 years now.
I used a single sheet of flooring, so no seams for any spilled water to seep thru... except at the corners.
As far as I know there have been no major spills or leaks that could have gotten under the vinyl.
Only a couple incidents of a minor spill and I removed...
I have heavy duty foam backed vinyl over the wooden floor and going up the wall 4-8",
covered with 2-6" of kiln dried pine shavings from TSC that I totally change out once a year.
I'm using a poop board with sand and PDZ and sift out poops 2-3 times a week.