It seems like they've done a great job with "size" of the world/map players are given... 100+ planets and 5+ stars is pretty large.
But the "content" is very limited.
Upgrades are pretty standard and simple... No different than any other standard RTS (Weapon/armor upgrades).. And new units.
Space seems pretty boring... Very limited number of planet types... just about ALL of which can be colonized... no moons... Spatial anomalies are pretty much non existent...
I hope future patches or mods will add much more depth and variety.