Great sessions in the keynotes area, specially the interviews with tariq krim, the Kathy Sierra speech and the "entreprise 2.0" by the author of wikinomics
I think the first day was the better, the sessions were longer and the speakers can go deeply into the themes they talk about.
The overal sessions were ok but i think that the sessions in the future must be longer, i speak to some people at the worshop and all of them think the same way...the topics were covered but the need more information.