I stayed at both Dallas Hyatts last week and at each it was full breakfast buffet or room service. With buffet it included *everything* I was told including tip (though I still tipped a bit) but for room service the delivery charge, gratuity, etc. are not included I was told, though I never used this.
Also - for what its worth; I booked online to get the GP1000 promotion then asked at the front desk to have the BREAKF code added (I booked the AAA rate with the GP1000 code online) - they gladly gave me the AAA coupon.
What I don't get is why was it so hard for me to find this code? I found it halfway through my stays...
Anyways, to get the AAA rate online (without the promo code) you need to enter a valid AAA number but then they have never checked for me.