If you've been looking for a product that sheds water from glass and make washing/drying easier, this may be a good fit for you. The last glass coating system I used, Wolf's Chemicals Glass sealant, was pretty rough to apply.
The application is smoking easy and there is no need to wait 5~15 minutes for it to haze over for removal. The one bit of advice I will give is it's probably easier to use a halogen lamp stand for the curing process than a heat gun. Set up a lamp sort of close and move onto another window. Within a few minutes you will be good to move the lamp. Still it's easy to apply, remove and cure and the shedding is really nice.
Water shedding in action: (Available in high-def)
List mist shedding action: