A few hours into this, no bugs, just that Shiloh guy is a meanie to a solo level 4 bard. He practically 2-shot me at level 3... a few more songs, an item or two and a level later and it was a long drawn out affair and I prevailed. A big lesson early on to value every point of relevant stats you can eek out even at low levels, lol.
Looking forward to getting into it with friends later in the week, they don't have that EQ nostalgia to fall back on, so even if it isn't their thing I plan to get them through several quests if not act 1 entirely and get some feedback from a different type of user than many of your testers I suspect.