Yes. Would advise against it. It rarely works when I actually want to stream games live. It did work great at first but it was unusable the first few weeks of the season. I recently started trying it again to mixed results, but it still rarely holds a live stream for 30 mins before crashing. It does, however, stream archived games well. I love that I can miss games when I have late night plans and still be able to watch them whilst nursing a hangover the next day. The archived stream is fine as you can let it buffer. I've never had a DVR before so missing Warriors games was sooo painful. Now I know I can watch what happened, even if I only have it on in the background while I'm multitasking on a Sunday.
But overall is it worth the money? Not really. Its mostly a hoax compared to what it is supposed tobe. The DVR feature is brilliant to me, but still not really worth the ~$150 for a season probably, and most people probably don't need this as much as I do (don't have cable/DVR/etc.).