nasty. I've been lucky, don't get any leaks. only once misjudged and made or bad decisions and van overflowed. all overflowed unexpectedly into cab footwells that wasn't prob sucked it all out with carpet shampooer. but all under plastic lining the insulation stuff was soaking for ages despite being middle summer/dehumidifIer/newspaper etc, but didn't know where to start with taking lining out.
so if have plastic liners, gonna b nitemare drying out, b prepared for lots of nasty damp smells lol