Honestly, I really dislike it. It's painfully saccharine and it reminds me of
Mari + poser in English. I think it has some awkward connotations in Spanish and Portuguese too. It just doesn't really seem like a name to me - it's definitely better as a middle name, anyway.
I think the name
Mary is beautiful on its own. I love almost every variation of
Mary, and I'd totally jump at the chance to use one. I kind of like
Marion Psyche but I guess that's too Psycho. It's a shame there are so few butterfly names,
Psyche and
Parvaneh are the only other ones I can really think of that work for me.