So, Project Sacrife took me 19 hours to beat.

Mods

Mods is just ok, nothing interesting. But as i first think the main mod of this modpack is Blood Magic and thats true... for the first half of the first chapter... And after that you going to get a bit of content like crafting iron plates with Altar. And the main problem of this - in Blood Magic focused pack you complete don't get fully or even half of mod experience. Blood Magic have a lot of content, but in BLOOD MAGIC FOCUSED pack you got blood altar, some starter will farm and uhm, uum. That's all, you don't need anything more, Blood Magic has over 20 rituals, but you need none of them except for 2. And that's really disappointng cuz it has so much potential

Quest system

Quests is pretty pretty good, cuz you got only 5 main chapters with good progression, description and some of side quests.
No rewards which isn't really good
And only 3 extra which does make sense, and thats surprisingly, cuz author didn't decided to add like craft every freaking item on JEI. I like it

Game procces

Early game 1-2 chapter - So this is the only and the most worked on part of the modpack, You got interesting start with blood magic, interesting biomancy. Overrall at this moment you think that's modpack is pretty good
Mid game+End game - I decided to combine this part cuz they are shit. So in 3 chapter you got the Transmutation table and that's absolutely gamebreaking feature, like it completely broke remain pack. They decided to not patch emc. So like most of the things in pack have emc, making it unnecessary to do anything more than once. Btw that's not the main problem. At the third chapter they just decided to not do anything, so you got like powah, DE and some other mods without any changes just to do "Craft every ingot in game recipe" and end the modpack

Overall for the modpack, it's pretty mid modpack(excluding Kitchen sink ones), but it only takes about 20-30 hours to play so you can give it a try