Really, really sleepy, so I'll make this quick...
Vash'jir is AWESOME. Lyllea's gone up a level and a half in 5 hours. It took me 20 minutes to get on once Cat hit, but totally worth it.
I have many nifty screencaps, and I managed to skip ahead somehow while looking for ore, so I'm halfway through the zone and don't have a mount yet. On the plus side, skipping ahead meant I got ore, and it was FAR less crowded. Now if I could just figure out how to get back to Stormwind to train the next level of mining. I remembered to pick up Old World Flight, and COMPLETELY forgot to train mining. Ooops. Still getting XP from nodes, and hopefully a ton of cash on AH.
And the server first profession achieve was cooking, and it happened before I even got in. Good thing I wasn't trying for one, right?
Hope you're all having a blast with Cat, and I will come back with a proper post with details and screencaps once I get a nap. All-nighters are not my friend.