The sequel to the tv series is just a notch below the tv series.
I won't go to far into the show, my review for this OVA would almost be the same for the tv series. It again follows Captain Tylor. At the beginning of the show the crew of the destroyer all have been reassigned. Then adventure ensues as a unknown enemy appears.
As I stated in my review for the series this is a show I recommend and think everyone will enjoy.