Had an hour playing as a Sorcerer and levelled up to 9 before switching off until launch day. It was the only class I'd not tried before now as I was convinced it was going to be my favourite anyway.
I don't know what it was like before this weekend, but it was ridiculously easy compared to a Barbarian, especially the boss in Icehowl Ruins. I had to check I was on WT2, which I was. It was definitely more fun than playing as a Barbarian.
Not sure which I'll play at launch now. It won't be the Barbarian, but I enjoyed all the others.