I did a few hours, managed to do the mission after choosing allegiance. I like the story arc a lot, and the ground areas are beautifully done. I only hope that the Feds and Klingons get their starting arcs redone to be as interesting, especially for the Klingons. Seriously, that 'tutorial' for them really needs reworking, who the hell wants Qo'Nos tour every time they want to start a new character?
The redone Klingon tutorial is pretty fantastic too. The Rura Penthe mission in particular is great.