I agree that the wealth of information is f****g intimidating. I think that's an issue of the new logistic mechanics, not of the UI, though. I don't want to guess how it is for someone who never heard of these mechanics before. I'd tend to say it is well managed be the UI, but I'm not familiar enough with it yet.
What I can say already is that the supply and fuel usage information are very useful indeed.
Visually its a matter of opinion of course, I think it's really beautiful. With every iteration it moves further away from the colored excel sheet style. The physical UI style is awesome! Tripad! And I like how it takes the exact same screen-space as the combat UI.
I'm playing at 1600x900 (on a 1920x1080 screen) by the way, so it's all a bit larger. Probably helps.
new UI is not good, i can't see reason why some fields hidden from me and i forced to visit cargo just to see how many cargo space left or why supply drain soo high/.
To see why your supply drain is high, just hover over "Supply Usage" and press F1. Its quicker to reach than before, actually.
Cargo space is hidden because there is nothing to do with that information while in flight. I mean, you see your cargo capacity during looting/buying and it's not like you can suddenly get more of it after that.