If you never had custom fit phones. I would go with it for one. It will show you what custom fit can do over universal. I have not heard W40 so cannot compare, but I can say my V3 is good with clarity in the mids and highs, but the bass a bit powerful and the quality of bass depends on the track. If the track pushes for ghetto bass, whomp, whomp, the V3 is helpless. Are you into bassy music, like club music or dubstep, and would like some additional bass? If so, V3 can provide that as it does not lack bass for sure.