This spray is awesome!
Every frosty winter morning, it is helping me to get to work without hassle of ice scratching. Put it that way: Ice scratching is awkward and old fashioned. My neighbour was still scratching, while I left the car park.
It is really recommended to keep the spray at home over night, as told by another customer. Thanks!
I actually added the spray to a hot water bath and that works even better of course.
In addition, the spray does not leave much grease and wiping the windows will remove it.
Personally I leave it up to 1-3 Minutes defrosting the window before wiping it.
The performance-price ratio is very good no doubt.
If you defrost the front, sides and back windows you can do maybe 10 times with one can.