1 and 3 don't concern me much. As for 2, what concerns me is the poor UI. I could get used to a game lacking add on capacity if the basic UI was better. 4 is dead on, and honestly I don't understand the design decision. I don't have the technical knowledge to know if 5 is correct, but if so that is a real worry (and it dovetails with 2 - will they be able to fix UI and other technical problems?). As much as I enjoy this game, if they are going to retain my subscription past (say) June, they are going to have to make significant UI improvements (as well as bug fixes, though I'm assuming that those will come). I'm also feeling a kind of sluggishness with my current toon (a sage); not sure if that is UI, the class, the delay in the execution of some actions, or something else. I wish the combat had a more fluid feel. Also, tab targeting doesn't seem to work that well, though heck, Blizzard can't seem to get that right either. Loving the game, but worried that in 6 months they will lose me if certain things don't improve.