only have used 2 glazes. both gave different appearances but definately added to the gloss.
ADAMS brilliance Spray Glaze gave me a very shiney, glossy, wet look prior to the application of butter wax. butter wax contains both polymers and carnuba and bonding was good.
3M Imperial Hand Glaze this glaze was a pain in the butt and seriously smelled HORRIBLE, but, the gloss, depth, and wetness was unmatched. it darkened my paint a lot. this was later given a coat of 3M show car wax and bonded perfectly.
all in all glazes give a good look that will normally last u 3-4 weeks in hot climates. they generally always bond well with carnubas and its very rare to see a galze bond correctly with a selant. exception of FMJ which bonds to its own glaze.
hope i helped! :bigups