Glock g23c 23 slide with RMR cuts and cutouts/ports stainless

Does anyone know how cerakote will hold up on a glock upper? I saw one a guy did in armour black on a G43X over the silver factory color and it really looks nice. I never had any dealings with cerakote and just wanted to know how it holds up.

What is a good slide lube for a semi pistol new to them and want to use a good lube on slide thanks