I really do have a problem with the new system. To me it seems to be complicated just for the sake of being complicated and not really adding anything remotely fun. Maybe it could be, but there are as of now to many "construction sites" left unfinished, feels a bit like driving down a road with pot holes big enough to swallow up you and your car.
One of the main problems is imho the presentation of information, or lack thereof, it is not intuitive and not really informative at all. I find it really hard to get an overview of the workings and effects of some of the new stuff and me sitting there, taking notes on a piece of paper cannot really be the solution. Just take a look at the planet screen for instance, this little box which really seems a bit lost on my screen "real estate". Whoever is responsible for the UI-design should consider finding another job. OK, that's not really a new problem, UI-design was never the strong point of Stellaris, but before this version I could just use 1080P UI overhaul mod and at get rid of all the scroll bars, that were really not needed. I mean, come on, is there anyone out there playing this game on a screen smaller than 1080p? For heavens sake, there is enough space, use f*****g bigger windows!
Now I have the aforementioned tiny little box of planet screen, which obfuscates the information rather than revealing it, while about 80% of screen space goes unused, really? How about at least giving us a ledger with detailed information on our planets, pops, economy etc? This would surely help out with understanding the new economy and safe people from tanking their empire multiple times before they can really get a grasp of how the things interconnect and work. And I won't even start about the other stuff, pacing of the game, balancing issues, etc as they have all been mentioned.
Stellaris has from the start been the more approachable fun sibling of the Paradox Strategy Family, but right about now its more the disfigured mess of a genetic experiment gone bad, that gets hidden away from public in its windowless room ...
And don't get me wrong, with all it's short comings and faults, I really loved this game. Around 1200 hours played according to steam, buying all DLCs, even the species packs, really show that. I tried to love this essentially new game too, but it really feels like seeing your girlfriend after having unneeded and not wanted plastic surgery and the silicone thingies are bolted on her shoulders and her back , instead of the position you would expect and her ass being transplanted to where her face used to be ...