A lot of places are finicky and others steady. My observations have been it has to do with their internal numbers. If they have new management or their numbers are down, you may receive surprises in the mail. Also at the time of a remodel, new dining and entertainment, etc. it is as much about them as you.
We did their $1k promo there. They send small stuff but we also only went in randomly a time or two, so they are on base. Overall, they didn't have a draw for us. First time slots were loose and we won and then we got taken for a few rides, so a little afraid of their style. Their dining is a little under par. The cafe was very blah and then also just a take it or leave it at that commissary. Places I'd eat for a free comp, but also very low on my comp list. I wouldn't go out of my way to go there.