Overall, I'm very impressed. I love what I'm seeing.

I know some of the things I'll note below have been mentioned by others and/or are already known by the devs, but I'll post them just in case.

Galaxy View:

1. Completion times for production & research in galaxy view would be nice, at least as a tooltip.

2. In the planet list, the manufacturing icon is missing and the population icon is where the research icon should be.

3. The tooltip for planet stats (manufacturing, research, pop, etc.) doesn't always match the info pane at the bottom left corner.

4. Ships & fleets are still disappearing occasionally. Sometimes this happens as  result of combat. I also had a ship disappear when a colony ship colonized a planet via the same hex (other ship & colony ship were in same hex, when I colonized planet, other ship disappeared).

5. During combat, sometimes fleets/stacks of ships weren't able to be attacked by one ship, but when I attacked a different stack with that or another ship, the original stack is where the damage was done. In other words, my fleet A attacks enemy fleet A, the dialog-box pops up, I confirm battle, nobody dies. Then my fleet B attacks enemy fleet B and one of the ships/fleets from enemy fleet A is destroyed.

Planet Management Screen:

1. The "planetfall" special tile has typo "impartments" instead of "improvements"

2. Upgrade from colonial hospital to medical center results in a weird completion time: 4294967295. It doesn't actually take that long.

3. Horizontal lines on at least some of the maps

4 Would maybe be nice to be able to click arrows to switch planets with the planet governor open.

Starbases & Starports:

1. If you add the mining ring to a starbase, you can still add culture or econ rings. But if you start with culture or economy, you can't add mining.

2. Removing sponsors so you can add to different starport is a bit annoying--I totally realize that the starport UI is pretty new.

Designer Issues:

1. Symmetry of grouped objects often distorts them significantly.

2. Anchor points can be very difficult to access at times.

3. Cannot export grouped objects--must ungroup and select individually, then export.

4. I had a strange glitch when I animated one of the small oval-shaped pieces (Terran model 101)--after a while it became very askew. Not sure if it was the animation or me tweaking other components.

Tech Tree:

I know Gaunathor pointed out most, if not all, of the duplicate bonuses. My overall feedback is it is a little bit unclear of what some things actually do--but I know you'll be adding and tweaking descriptions and all that, so I'm not too worried.

One tech/component balance issue is the Subspace Sensor (and sensors in general)--it is only 5.6 mass and offers 12.5 sensor range (plus nebula vision bonus), which felt way to inexpensive/miniaturized. And sensors should definitely be limited. I strapped about 10 on a ship and bought it and poof, goodbye fog of war. I love seeing more sensor range, but perhaps the biggest ranges could be left for starbases.

That's it for now. I'll keep taking notes as I play some more. Thanks for all your hard work!