Good port, maybe doesn't hold up that well today. Still worth a try.

It IS modded SkyBlock as it goes: got the essentials experience, the history (as to how much it influenced others packs), and the core mods. That said, I can’t do any more Ex-Nihilo. Though maybe they change the milestones or the quest system.
It ISN’T bad; simply, you get what you see. At least for me, for a solo play isn’t something to sink my teeth, maybe either with friends or for a forever world.
It, of course, runs very well, and I didn’t explore all the mods, so I recommend doing the same as I, play 2 to 3 hours and see if you like it.