Review for Argosy Casino - Sioux City Review For Argosy Casino - Sioux City Google User Jul 1 '18 at 2:12 Rooms were not very clean, towels had awful looking stains on them and had an awful experience with the fire alarms and the sprinkler system going off at 5 am and nobody was told why that had happened until we asked.. Although, the front desk lady was so kind and apologetic for the inconveniences. Probably wont stay again. View full site to comment or like