I've not really put much thought into Piko. But I will note its interesting Sony is now in on Vocaloid. Why? Because Crypton's a King, Sony's a God. I'll put my thoughts into their first Vocaloid overall however when I hear his voice. I changed my mind on both Iroha and Lily after I heard their voices. The voice is my convincing point. Incidently, Lily doesn't please me and Iroha does if you are wondering.