Sorry, I wish I could open the Walmart system that just arrived at my house yesterday, but my GF would kill me if she saw it. Long story, but she actually is giving me one for my X-mas present, but its the one coming from Amazon, not Walmart. So I can't just break this one out and fire it up . . . its gotta stay squirreled away for a while. She won't be too excited about a second system when she's already buying me one as a Christmas gift.
Plus if the system looks to be not that great (from early reviews), I'll just return the Walmart one right back to the store. If it is pretty decent, I'll just keep it.
I also have an arcade stick by itself ordered, already shipped from Target, so that should arrive in the next day or so.
Sorry to not be able to give impressions, I've been looking for those myself . . . haven't found anything yet though.