I've been playing it a lot lately out of some weird compulsion to see what's next. Now that I beat Remix 6 and the new levels appear to just be the first 6 with higher difficulty I think I can make a fair assessment.
I played it, but I don't think I enjoyed it. There were times where I downright hated it and stopped playing it. There's charm here, and a few of the minigames (Blue Birds and Fan Club) are fun, but a lot of them are hindered by the flicking mechanic just not working as well as it should. It sucks to be having a good flow going only to fail because the flick you did doesn't register with the kind of flick the game wants. It's a bit like Guitar Hero on DS: you can play it, but there's no real feedback telling you when you are doing it wrong other than failure.
If I had to choose between this or WarioWare, WW wins every time.