The main issue I (and most of you) see with Tablet UI is the Trebuchet rendering. It seems problematic especially in Landscape mode, but Portrait is no paradise as well.
The reason for that - I opted for the any-DPI approach when supplying Tablet UI - not all apps are set for that. The good thing, though, is that Trebuchet is part of our code base - and a correction is possible.
So, today or tomorrow, you'll get the better looking Tablet UI with the new CM 10 style battery.
Stay tuned - soon.