Quick answer is no. Only easy if you are ok with imperfections. I'm super happy with the Cassie in my avatar. It turned out better than I could have hoped. My most recent all black redo, not so much. I'm super critical & although it looks good in pictures & those who aren't familiar with the bag would never notice, it just didn't come out as good as I had hoped & I don't know why. As for the hardware, I've only done the tabby. Happier with the parts I could spray more than the parts I had to do by hand.
This time, I'm going to be super patient (hard for me) & take my time. I'm even going to try & buff the hardware first to get better adhesion. Obviously protecting the areas around where the work will be done is key (I use blue painter's tape).
It's best you initially work on bags that don't require a huge overhaul. Be super patient, take time between coats, etc. Its trial & error. I've only ever done on bags I got for a steal or was going to rehome.
Sorry for being so long winded. Hope it helps. Feel free to PM me if you have any other questions!