Well its been fine so far, car "feels" better on a hot day with it running, heat isnt really an issue as its low down and the other side from the turbo, the only drawback is that it only holds a few liters, so its defo a traffic light grand prix or drags use only, will dump the tank fairly quickly, ill time it to see how long it lasts. An intelligent sprayer controller would cut the water usage quite a bit, but ill stick with a switch!

As far as installing it, its piss easy, it just takes time, i'm expecting a run on the washer kits from supercheap tho! they are almost designed to fit in that gap, the bolts included in the kit even fit ! there is a momentary switch and jets included in the kit so actually it could only cost $23 all in!