I recently used Meguiar's Mirror Glaze Synthetic Sealant 2.0 #21 on my Crystal White Pearl Subaru. My first time using a car product with glaze in its name. It went on top of a four month old Meguiar's Ultimate Wax wax job.
I applied it by hand, let it dry four an hour, then wiped it off by hand. The paint now has a gel coat look on it, like when my wife puts a gel coat on her fingernails. Pretty cool affect actually. It doesn't feel as slick as it looks, though. The Meguiar's Ultimate Liquid Wax leaves a slicker feeling surface, IMO. But, last week we had heavy rain showers for a couple of days, and the Meguiar's Mirror Glaze Synthetic Sealant 2.0 #21 showed it true benefits, as the water seemed to just disappeared off the car as I drove, and no water spots left behind on the paint surface when parked in the garage.
I have to say that Meguiar's makes great products, and I see no reason to use expensive boutique brands.