I think the hardest time I have with getting new corals is tank placement. For some reason, no matter how much reading I do I'm never quite sure how to interpret instructions like "medium light, medium flow" with my personal tanks conditions. The indecision and fear of not giving a coral it's optimal spot first off always makes me nervous. And yet I think the only coral I've hurt was a Blastomussa I put too close to the light and it melted away to almost nothing before I realized that's what the problem was. It has since recovered and is very healthy.
But corals (IMHO) definitely round out the look of a SW tank and I'm probably more fascinated with my corals than I am with my fish.
So congrats on venturing into the world of corals
I love frogspawns, they're very cool especially once they fill out. Mine seems to like being right on the bottom in an area I'd describe as medium to lower flow.