Fox 21 (Eastern Shore of MD) doesn't show Wheel of J! in HD, so we can't get the new "full" view of the new sets and all, *yet*...
From a non-HD perspective though, I like what both shows have done. J!'s podiums are seemingly oversized, but I don't think they look bad, rather classy instead. I won't gripe about the podium lights, since that's said to have been rectified.
Wheel's updates were top-notch. I like a lot of the revamped music, surprisingly, and that wheel looks a lot better with the return of the early 90's colors! If anything, change that one pink 900 to a yellow 900 like they used to be, and bring back the top-dollar spaces from last season, all of them look somewhat out of place on the wheel now.
All the new graphics looked sharp as well, you can tell their graphics department put a lot of energy into making sure all that stuff looked just right. There were a variety of new camera angles used, which I thought was cool also. The score recap window seen midway in round 3 had an "it's about time!" reaction from me, I've thought for some time now that WOF should do something of the sort, so that today's audiences can actually attempt to keep up with the contestants and get more "into their shoes."
Now, if that Wild Card space ends up not working well and looking like just a gift tag-ripoff-looking space, my opinion could take a 180...