I loved the magic glass in the brig! The resizable/repositionable hole was very cool.
The endless levels corridors below the dome was either at the top of the neck or the dome on top of the saucer. it was cool. As were the new displays along the corridors.
The new warp core was nice. It looked like real machinery and not a blue lava lamp. And so big you could climb up inside it! Nice to see some big important-looking control panels outside.
The enormous shuttlebay got a slightly new look and a giant crane to move the parked shuttles between levels (and some idiots still
blindly insist this Enterprise is no bigger than the old!
It looked great.