Welcome to TPF! I think most ladies here use Apple products, there's a thread with lots of good info in it, I've posted the link below. I've used Apple myself, just the moisturizer and spray, and had great results so far. I didn't cover the hardware, I just tried to wipe off any spray that got on it, and of course tried to not put the moisturizer on the hardware.
I do not cover the hardware. I spray all my leather bags, accessories, keychains, shoes, and light color cloth (parker butterfly wristlet) with apple guarde, though I am more picky about spraying my metallic and light colored bags right away with a good 2 coats.