Tl; dr: quick service, delicious food. No complaints at all.
Full review: There are a few things I look for in diners: speed of service, and quality. This may sound obvious, with most of them serving the same items, but not all cafes/diners are equal.
Now, I'm a satellite technician and I work all over the west valley. Whenever I have a lunch break, I usually stop at whatever is close. Today it happened to be royal cafe in sun city.
While the area is predominantly senior citizens, I love breakfast more than any other meal. So I sat by myself and ordered my food (a #4 combo because I'm a sucker for eggs, pancakes, and bacon AKA the classics).
The service was quick. I ordered, had my food, and ate it within 12 minutes.
Also, the waitress was nice and she didn't waste my time. She brought the check with the food so I didn't have to wait.
As for the food, it was all delicious. Fluffy pancakes, perfectly scrambled eggs, and crispy but not burned bacon.
I tried this place in a whim and wasn't disappointed.