Kingdom Come: Deliverance - Treasures of the Past Review (Rodario)
If you feel like cheesing an otherwise difficult but rewarding game, then disregard this review. If you want to enjoy the unique experience this game has to offer, then for the love of dog, don't get this DLC!
The treasure maps and associated Warhorse Armor set are basically just cheating with extra steps. This DLC allows you to obtain high end armor at the very beginning of the game (after the prologue), thus greatly diminishing the intended experience of the main story.
Not only that, but the extremely low sell value of the armor means that repairs for it are orders of magnitude cheaper than for comparable vanilla armor.
I wish I had the willpower to disregard the loot, despite paying for the DLC ($2 on sale, but still) and going through the minor effort of collecting the treasures, but I don't. At least I made a deal with myself to only use the medium tier vanilla items found and throw away the warhorse armor and high end vanilla pieces, but if you want to experience the game as it should be, just don't get this DLC.
PS: Getting it after completing the main story would be pointless too, as you wouldn't benefit from it anymore.