There is a slight delay, but I haven't seen it be as long as 2+ seconds. It seems to be about 1 second to maybe 1.2 seconds from the time I pull to when the spray starts. But none of my VWs are instant - my Arteon and my last 4 Passats, plus my 2015 Audi Allroad, were all a 1/2 second to 3/4 second delay to start squirting.
Pros: Heated washer nozzles
Cons: slight delay
Vehicle:
Volkswagen