I have used them a fair amount, nothing really beats cleaning up an old dirty and greasy-oily Cruiser.
Only real issue is where does the funk washed off go? I can’t do it here at my shop, no way. EPA is watching this property and honestly I don’t feel good about it going on the ground. Creek right by my shop that goes in the river, same for storm drains. But man oh man, really they are the bomb for cleaning up the old mess Cruisers have all over them.