The shuttlebays seemed too small, too. And cheap looking. Even the shuttles seemed truncated from how they'd been in STAR TREK V. I understand the reality of there not being CGI at the time, or whatever, but even without the CITY in the SKY moniker, there were too many sets that seemed too damn small.
And yes, I understand how the holodeck works, but the room was too small. I did like the simplicity of the yellow stripes on black, however. I hate how the later series and movies have to show all of these knobs and nubbins all over the place, to give it "realism," but the idea is so absurd in the first place, I felt it was overkill. The simple look served the room much better.
The arboritum is way too small, that's entirely true. I mean, shit, the rec room in TMP dwarfs TNG's shuttle bay and the first ENTERPRISE is like what? Half the size of a Galaxy Class Starship. I love the "D" so much and alot about it is surprisingly "right." But alot of it is presented very strangely and inappropriately and it always seemed to come down to money. They should've just not presented the ship as being so massive and gigantic, then. But they did and this is the way they went about representing it ... what can you do?