I've never really done any beta testing for a video game ever, let alone for an MMORPG, so is there anything that I should look out for when play testing the game?
Bugs, stuff that doesn't seem to work right, places where you get stuck with quests, general feedback, etc.
For example, here's some feedback/bugs people have noticed:
Rapids is dismounting players.
Valsirenn gets stuck during part of the Quee,'s Decree and doesn't do her scene properly.
Opinions on Crown Crate contents
Jewelry crafting and Psijic Order are very grindy
And so forth.