it runs fine on my 1080ti, though i haven't reached a super large city yet. there are good things, road tools are much better, buildings are much better scaled, better graphics with higher textures, more city management stuff (taxes for each sector of the city and by education).
there are gameplay bugs. some aspects are horribly balanced such as city services, its near impossible to obtain a surplus budget, buildings while more scaled dont have much diversity, to do zoning on correct side of the road you have to place down paths.
there are dlc features from first game missing, custom industries, custom parks. landscaping is much more limited there are no props and fences and shit. no bikes (ikr) though pedestrian streets do exist there are no pedestrian areas.
i also miss the mods from the first game like road anarchy, move it and network multitool. such bangers.
i think the game has a good 'base', it needs more time and more love from modders. they increased the price on release, right before release it was going for like $10 in Argentina region, now its $25. wait for discounts.