Review for Argosy Casino - Sioux City Review For Argosy Casino - Sioux City Google User Jul 20 '16 at 23:48 Hotel smelled bad. We got locked out of our room because the lock was broken. It took 20 minutes for the front desk clerk to break in. The phone did not work. The room did not feel clean, ie. Mold in bathroom, dead bug in corner. Employees were friendly. View full site to comment or like