very rarely do you leave any significant amount of water on the yard, 1st cleans maybe, but you won't be flooding anyone.
occasionally the bird muck takes a lot of getting off, sometimes even have to get ladders out, but you can buy various devices to deal with it from the floor.
in the main i prefer wfp, once in a while i have one of those days where i want to be trad again, but it does'nt last long
