I've played it but not recently. The graphics weren't ever the greatest but Arcen has supported the game with updates continuously (monthly if not more often) since it was first released. It's all top down 2d so it can't really compare to SoSE graphically. It's has a lot to do with blobbing hundreds of ships in battles against a very tough AI. And with so many different abilities in ships every game is different. And the emergent AI is not just a bullet point for marketing, it is very challenging. See the programmer's blog about it here
I'll be buying this expansion just because it is Arcen's first (best?) game and I support it whenever an expansion comes out.This comment was edited on Aug 11, 2014, 16:40.