Split-leaf philodendron, otherwise known as Monstera - that's it. I've always wanted one but somehow buy the same houseplants every time I go to the nursery: chiflera, asparagus fern, dracaena and baby tears. Not this time. There's going to be a new addition to the plant family.
P.S. Apparently Elle Decor really likes the split-leaf too because both images are from their various sites.