Louis are apparently valid for this purpose not sure about non-Missouri Harrah's properties. Management denied action to a the would-be table drunk soon after he sat down, which won my respect.
The NL game was typical loose-semi-aggressive SSNL, but the game did get tighter briefly after a couple of big stacks left before gearing up again.
Spread occasionally, not sure about limits. The 75% game hasnt been as popular lately and you might find one (or two on fri/sat night) running, most people are sticking to the $100-300 buyin game $2-5 blinds, $100 min., maximum of $300 or 75% of largest stack at table (subject to Missouri buy-in law).