I hated the tile system because it was the same exact feeling for every single planet. The same hoops I jumped through in the same order, regardless, in order to make the most of the bonuses. I don't feel that way for the new system.
I pretty much do feel that the new system is more or less the same regardless of planet. I'm pretty much doing the same sorts of things in the same sorts of order with only minor deviations regardless of planet, empire, etc. Radically different empire types [machine empire vs. organic megacorp] will likely have different builds but each planet of those empires pretty much follows a similar pattern.
Is it different than before --- sure? Is it "hard" -- not really -- not as long as you're willing to invest some micro.
It got to the point that I tried to put everything into sectors and let the inefficient sector management take care of it for me, because I disliked it so much.
I did something similar. I would pre-set my entire building, and where applicable population, build order for the entire planet. Once that was locked in I handed that off to the sector AI so I could concentrate on more important matters. Easy-peasy.
As far as I can tell both systems are VERY simple if you're willing to invest micro in the right places.
I was promised adjacency bonuses, but the only building that provided it was the planetary capital.
I was promised variation because of resource distributions, but in the end I just followed those resources and made no real decisions on my own.
I was promised that I could eventually stop having to worry about it, but with the fact that I kept colonizing as made sense, I never stopped, and it drove me insane.
I understand and the devs didn't really deliver on those promises. Other 4x games have handled adjacency and similar better.
With the old system though you looked at a planet one time and in a few minutes never had to touch it ever again. With the just-in-time nature of planet management that's not how the new system plays.
There you have it, that's why I hate the tile system so much. I hated it almost a year before Le-Guin was announced. It's just a bunch of empty promises with no real hope of salvation. The new system has the ability to be better, and I already feel it is a bit better. It's the right direction to go, and we just need to arrive at the destination and I feel everyone will agree.
I'm of mixed opinions on that.
I do agree that the new system can improve a LOT. I can see some of the Megacorp ability to build things on other planets as a stepping stone to things like espionage [building safe houses, spy networks, etc.] or even embassies or other buildings that could add depth to the game. So there is potential in the recent changes.
Unfortunately the new economy doesn't really have much in the way of interesting decisions to make for many empires. The decisions are certainly impactful BUT it's pretty easy to build a good-enough economy at this point. If you increase the impactful decisions by 10x but all of those decisions are simple is it REALLY adding much to the game. In this light the new system hasn't separated itself from the old one OTHER than it's harder to avoid micro that just isn't interesting to me in the slightest.
YMMV