I have only played 4.5 hours on my Zan druid but I’ve managed to ding 30, tried out heroic mode (got my bear butt handed to me once - wasn’t prepared), and now I’m just trodding along with questing in Highmountain.
I kinda like the tough enemies in heroic tier. One of them tore me up though - they spawn more felguards and it gets ugly fast - even for a druid tank.
I also like the little random boons that appear out there. Bronze is flowing pretty nicely. Levels are coming along as well. I can’t say if it’s as fast as MoP remix was but maybe it’s similar to what my first character experience was there.