The lag is worst it's ever been for me. I was doing the Haku quest and by the time I got to the entrance, people were on areas 4-6. Then several times I would try to use the gate and it wouldn't work, forcing me to restart. Then when I used the gate, I would wait 10 secs, then randomly take a bunch of damage and appear at the next part. I couldn't make it in time for the boss. I was 2-3 stages away. If you ask I'm usually one of the first people there.
EDIT: Tried another run. I got a rip-off staff for my troubles. Haku's teasing me.