Finished up a 2 night stay here.
As a Diamond, I was offered the choice between a $15 credit at Jackrabbit or the breakfast buffet at the Hilton Portland (Hopcity). Seeing as $15 doesn't get you very far ala carte, we took the buffet option. It was fine, nothing special.. the bacon was crisp - perfect - not soggy. In terms of late checkout, they could only offer 2pm.. 3pm would have been an extra charge (nothing terrible, $10-$20 I don't recall exactly).. but it was annoying because I'm used to Hyatt offering 4pm w/o a question.

Room was nice, very stylish in a mid century modern way.. the shower is extremely low ceiling height.. I can't imagine how one would handle if they were > 6 ft.