Tarik

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.

So, it isn't anything mind-breaking, but it shows effort. I’ll recommend it, though more tech is always welcomed (like a create-adjacent mod).
I did enjoy the pack, and the developer posted a short playthrough that helped with some sections.
The good: aside from some bugs, it's well optimized for the selected mod list. Some mods from said list are scarcely used in other modpacks. Another original feature is a reworked early game based in flint; it attenuates ludonarrative dissonance from the story and uses exclusive tailor-made blocks. So, from the questbook (that can be accessed with ') you can understand the modpack story, which I genuinely liked. Many modpacks would benefit from any type of narrative.
That said: the mentioned bugs, some are world-crashing (i.g. armours for me). I miss some mods features and I usually don't enjoy that much survival mods (like Tough as nails). The modpack's blocks are good but have some wonky interactions. The questbook could be a bit longer however as it is probaly a solo project, this is really a minor suggestion. Finally, the story isn't Shakespearean, but it exists.
I hope the author continues making modpacks; it was refreshing and I would generally recommend for everyone with some caveats (or callouts).