Very easy to fit, took about 20 minutes but I also changed my blades... which took longer!
I can report back some leaking as someone else pointed out. See picture. Not sure how normal this is as I can say I've never used my washer whilst stationary and observed so intently.
There seemed to be a fair amount of liquid pooled on the ground, and whilst lifting the bonnet post application and spray, there was still a fair bit of liquid dripping from the driver side sprayer.
My guess is the liquid doesn't exit the fan washer as quickly as the jet, so when I disengage, the liquid which hasn't been jettisoned just sits in the pipe and leaks out. Therefore in reality I'm probably not saving any wash as a result of the swap; but the clean is certainly better and that is good enough for me.
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