I have a Valentini in my 75g softy dominated reef. She will nip new stuff and I had to remove all of my LPS to a different tank as she was hellbent on devouring them. Acans, brains, anything fleshy really, SPS, chalices...all fair game to her endless appetite.
That said, she is leaving my softies/gorgs/zoas/palys/nem alone. They explore with their mouths, sometimes the nipping will stop. Don't plan on any decorative inverts and you will need to restock your snails regularly.