Well the Maze activity went active today. Everyone is saying they are going in and getting owned when soloing, with the only wins coming in parties. Wonder how we'd do in a pet burn style. I don't know if the mobs are charmable or not, but they are definitely not nm's because you can check them for mob level.
In short, for now I would suggest going in with at least 1 other person. Haven't seen one success story of a solo attempt.