We stayed two nights in mid-September 2003. We booked in at very short notice because the one across the highway (booked by our travel agent) was SO AWFUL. The only room on offer was on the "smoking floor", but there was no odour. The room was sizeable and had everything we would expect - nothing like the reviewer above encountered! We found the staff pleasant and helpful - especially as we stayed two nights instead of three - and the bill was very reasonable compared to the UK.
Swimming pool hours weren't convenient for us - but that's a minor point. If you go to Natchez - visit The Pig Out Inn Barbecue on 116 Canal Street - great, and nice people! Also visit Frogmore Cotton Plantation - exceptional.