I'm not adverse to elbow grease, Rain-X is like Zaino, just smears, no matter how much pressure you use, how long you wait, or the the temperature you apply Rain-X. I like Silbead, worked great. I say "worked" because they no longer manufacture it (at least I can't find it). I have used Dr. Beasley's (http://www.drbeasleys.com/glass-waxx.html). results better than Rain-X but not equal to Silbead. I now use Aquapel http://www.aquapel.com/ still comes in 2nd to Silbead, but very good. Rain-X windshield washer solvent(orange) clearly the best solvent I have ever used, great cleaning off salty windows. Rain-X in the yellow bottle, not good. Still looking for something as good, if not better than Silbead.I use RainX on both my vehicles and it works well if it is applied right. Just seems some folks are adverse to a little elbow grease. And as David knows that is the magic for using it. It can be a bit disconcerting the first few times you see it, but it is great.