This is our favorite of any of the reservation casinos in the Phoenix area. They feature $1 draft beers at the main casino bar, and a great mix of machines that do seem to pay well on most occasions we've been.
If you are planning on eating at the casino, do NOT even consider the buffet... we've gone twice, and both times we were horribly ill and the food is mediocre at best. The sit-down cafe, however, does have pretty good food at a great value, and there is also an Asian Noodle bar in the non-smoking area.
Try to avoid going on a Friday-Sunday, or be prepared to wait a while for a machine...
If you're in the area and want a nice place to go and unwind, we recommend Fort McDowell.