The trick is to go early enough on a winter morning that the restaurant is in twilight -- either it has no artificial lights in the atrium or they don't turn them on for breakfast -- so you can watch the city slowly wake up. Phoenix is remarkably reluctant to face the day -- it's not so much the "city that never sleeps" as the city that rolls out of bed at 8:55 and fumbles for the aspirin -- but turns very pleasing shades of pinky-gray while doing so.
It's a good burrito. One special merit, if you're not absolutely committed to the cheapest deal, is that it's possible to get a burrito with no eggs. The scrambled eggs I've had here are perfectly fine, but some days I'm not up for trusting other people to make eggs and on those days, a huge burrito packed with chorizo and potatoes hits the spot.
I've yet to have any problem with service. The ladies behind the counter are firm, but honestly, dealing with me before breakfast requires communicating like a strict kindergarten teacher.