Yes, I am.
It's less a sound card and more a music card. It's a card dedicated to streaming audio, not to playing spot effects - so if you're usage is music it's an excellent device. What it can't do it (for example) play games like a proper sound card (Soundblaster sort of thing).
Don't know yet.. still got a few thing to iron out yet.
Will it play radio streams? If someone adds support, sure.
The writer of the radio player would have to support it, either via prisma.library or the MHI device. Possibly the AHI....