My list of bugs and other bad things:
1) Some planets can't be colonized - either by player or by AI (I have one such planet in my territory - it became a regular meeting point for Altarian colony ships)
2) There is many typos in Research menu (like Anti Mater Containment - guess someone at Stardock really hate that Disney movie...)
And, well, that's all, actually. All other things is "Coming Soon", so there's no point to mention them 