Not really blown by the voice-over myself, but its acceptable...and some of the unit taunts(?) are pretty funny.
In regard to ship design, especially Vasari, overall its IMHO very satisfying, i personally dont like some of the over the top "pointy" and "stingy" Vasari models, but those more compact ones, like Kortul, Vulkoras, Skirantra, Overseer, Skirmisher, Destructor, Ruiner ... are very good, have a lot of character and would be good enough for any real sci-fi TV show...Oh and Orkulus as well and new Titans indeed too, especially the Loyalist one.
In general, i do not know, how many models did the Ignus Dei fellow for Sins, whether all of them, or only those, you can see as concept art on his deviant art page, but those shown there are all masterclass and i would not change one bit about them. I even like his original sketch of the Advent Starbase with basically simple vertical cylinder more, than the final ingame version with the DS9-like pylon.