Seems ok actually. Was free with talktalk and no monthly extra cost. Its a bit slow to navigate and but i like the way it integrates into i player etc without having to search through them. Normal freeview channels but u can bolt on extras like sky sports etc.
I work for TalkTalk and once they've got FTTC in my area I'll be getting that and YouView too, mainly as its free and it'll save me a packet from what I'm paying sky at the min.