It’s also, to use a particularly abused word as of late, fucking problematic. It has 6500+ endorsement, and almost 118K unique downloads, and promises to add a hidden Telvanni settlement, 40+ new locations, 20+ fully voiced NPCs, new perks, new weapons, a new house, all dwemer or telvanni themed, and a non linear main quest with more than 12 side quests added in.
Project AHO is a DLC sized quest mod for Skyrim.