I was going in ready to like it, until it was revealed that it was streaming only. I would have liked to have seen a piece of powerful hardware that also came with the option to stream your library. I'm not saying I'm NOT going to try this, but my excitement is definitely dampened a bit.
I like the controller though. I'd buy that just as an extra PC controller.
Similar here, streaming is just not my thing. And like I said before, I'd like to hold that controller in my hands before I judge it, but it doesn't seem too bad right now (though I generally prefer asymmetric design)
The Nintendo eShop rating Thread: http://gamrconnect.vgchartz.com/thread.php?id=237454