I see the retro style music/videos/ are coming back to fashion and I can't help but be happy about this fact. It's an excellent piece of music by Selena and I'm glad she's back to creative work and is full of energy and ideas for songs. This arrangement is not at all hard to deal with and I'm sure any confident beginner could get hold of it in no time. The song will be a good solo piece without the lyrics too (though girls like such texts a lot and can relate to them often). I'm just looking at it from the standpoint of a piano player only. In this regard, it's a brilliant composition for sure.