More than a typical expert pack

The Enigmatica series have always been some of my favorite kitchen sinks, but Enigmatica 9 Expert really surprised me from the start and is, from my short playtime so far, a very tightly crafted and unique challenge.

While I'm not usually into expert packs, I'm a sucker for any pack that starts you off in a dimension that's not the overworld.
More on that:
The pack has you start in the Twilight Forest, and this is the first time I've experienced Twilight Forest without god-like abilities, much less with progression mode turned off. I now have a newfound appreciation for this, let's be honest, somewhat overused staple and I think getting you to look at old content in new ways is what expert packs are meant to do at their best.