The Kube is great! I'd buy that and be happy. It's certainly a unique sounding earbud. Someone in another forum asked about a comparison between that Vido and the FAAEAL Rosemary. After some listening between them I'd say that would be a nice upgrade. They have VERY similar signatures but the Rosemary is more refined in every way. Soundstage is not as wide but instrument separation is excellent and the grain in the Vidos mid-range and treble is no where to be found (even though that's one of the things I like about the Vido.) They are 150 ohm drivers though and they really need that power. If the source isn't up to it they become bloated in the lower mid-range with NO treble.