I went through and did a couple things for each item on the list there and spent some time generally dinking around.
-Combat, grouping, raid window, pets, casting, inventory management, spending and earning AA, turning in quests, buffing and debuffing all seemed to work fine.
-In the buffs part of the target window I could see buffs on other players, but not buffs/debuffs on NPCs. That function is past my time so I'm not sure how it's supposed to work.
-I had an issue using vendors. I couldn't figure out how to sell or buy from them. There seems to be a UI element related to 'sending' items that is on top of the UI element for buy/sell when I open the vendor window. The 'sending' thing is past my time so I'm not sure how it's supposed to work, but there's something screwy going with the UI buttons if nothing else.
-The target circles under NPC didn't reliably have the correct color related to how they con. Sometimes they did but sometimes they were just white (for mobs that definitely weren't even con). For example, drakes in ToV had white circles but bats in WFP had green circles.
-Some AA didn't transfer properly to test. For example, on my ranger I have 3 SoL and 3 PoP double ripose AA. The updated AA UI condenses these into a single AA category with 6 levels. Only the 3 from SoL carried over.
The #cast command isn't enabled for us on test. That's a nice one to have access to.