I'm not sure how I would rate this movie if I had not seen the Robotech saga. As a standalone sci-fi animation it, as some one else has already said, strictly by the numbers.
The story brings together characters from all three story arcs from Harmony Gold's Robotoch series. Rick Hunter is seen, as opposed to mentioned, Dana Sterling is actually drawn appropriately, and Scott is back, complete with Ariel.
The movie starts from just before the attack on Reflex Point, but from the view of the Mars force, not the resistance, then proceeds onwards in a very typical Robotech type story, though with less music than normal. It's nothing special, but reasonably well done. The animation suffers from being late 1990s computer art, but that's still a huge improvement on the second and third parts of the original story. The plot is also a lot less cringe worthy.
Being Harmony Gold it means English language only, no subs, but then it was possibly commissioned by them as it has no association with the 'real' Macross arc.
In summary, if you are a Robotech fan then get this, while nothing special it's well done and entertaining. If you're not, then don't.