just finished Book I. Really enjoyed the game and still excited from the adventure. So I have no (almost) any complains

First of all - randomized chests content:
I think it depends on player if he load/save in front of every barrel until he gets what he want. But I agree that little limitation would be fine (eg. not any weapon in this chest, not any gold, nothing more expensive then 250 gold etc. also some limits depending on character level could works although it's more work to implement).
Story:
I cannot say original (although I've never played game with similar) but interesting and moving forward. I would like to have more ways to achieve main quests (eg. amulet can identify Lilith or somebody else for another help) this would make a game replays more fun.
End:
I met Gramuk at 15 level (elemental 13, swords 12, light armor 8 ) and he was too easy! I didn't finish all the side quests so I could be even more skilled at the end.
Overall:
Very good game, story, dungeons (could be larger) and technical implementation (never crashed on win and linux). Thanks Basilisk for 30 hours of fun and looking forward to Book II

Regards,
sd