Very impressive. The main screen is quite different from GC1 and will take me some time to get used to, but so far I like it. The 3D affects of the ship build screen is very nice.
I have some difficulty understanding the format of the tech research screen. Maybe it is intuitive to some, but I can't seem to get the pattern of the techs being shown. Obviously some techs can not be researched until its prereqs have been researched, but the layout of the techs does not seem to show this very well. Perhaps it is a highlighting or color problem. That is, should the techs that are currently available for research appear different in the layout? Maybe they should be brighter or a different color? Or maybe the ones that still have unresearched prereqs should be greyed out? Maybe it is there, but I failed to see it when I saw it (which is only once).