So I've used both to sync music to my Touchpad, and HP Play was several times SLOWER. I still need to rule out if it was somehow related to video (several playlists included video, yet none of those came across, so not sure if it converted/sync'd them, in which case I'm comparing apples to oranges...).

Has anyone else noticed this?

PS-The interface on HP Play was also a bit funny - there was a checkbox on screen to allow you to select which playlists to use, but you actually clicked on another checkbox above that to select this feature...