I used to use Turtle Wax Gloss Guard and was very pleased with it. There is a newer sealant with red bottle I have yet to try.
I have always been skeptical in Ice range, for ease of use, durability and water behavior should have been compromised. I didn't know Turtle Wax Ice Liquid Wax was such a beader. This Shine Lock Sealant seems to work only in terms of sheeting. Sheeter should clean better, right?