I just finished CtD. I enjoyed it. If the story and action had been punched up a bit more I would've been happy if this plot had been the movie. I pictured Jon Voight as April.
That being said I didn't enjoy it as much as I did Countdown. There were so many little geek out moments in Countdown and there were only a handful here. Countdown was much less constrained because it could do whatever it wanted in the 24th century for the most part.
It was good seeing Captain April and I'm guessing this Admiral Marcus character is Carol Marcus's dad. Wasn't expecting to see a Mudd or that she would be Bajoran (?). It was also cool seeing the Klingons, though I wish they would ditch the leather helmets and I don't like that new Klingon ship design.