Very addicting, this might be the dark souls 4 we've been waiting for.
On a serious note, art-wise, (including music, sprites, animation, UI, and literally anything else) it can and should be greatly improved. But it's understandable considering it's just early access.
Gameplay wise it hits the spot just right. The randomness makes it less repetitive, the array of weapons, armor and items is great. The little features in the hub area keep things engaging. The essence mechanics carries the progression. This game benefits from every little detail you throw at it, being traps or npcs. Maybe some lore in item descriptions can help the world building... that's just my advice though, not everyone might agree.