Herc can feel really abrasive, so you're warned.
My friend did it in his TJ and it feels like sandpaper. I wanted something textured, but not THAT rough. I went with Monstaliner. It can be rolled on or sprayed on. But IMO, the masking off for rolling is a LOT easier than for spraying. The prep work for the metal is the same though. The rolling will take a bit longer, so if this is your only vehicle, it could be a long weekend for ya.
I have another vehicle, so I was able to take my time and roll it on over a day and a half, then let take its time curing (I gave it a week for it be solid) and putting stuff back in.
Of course you don't have to wait that long, but I wasn't in a rush and it was raining that week anyway.