In terms of airports I have to say that the Phoenix airport is pretty up to date... but my god it's huge! Assuming you are in the same terminal as your flight you will be just fine, but if you have to switch terminals you better hustle! There are lots of places to eat and grab a glass of wine and many places to pick up some snacks for your flight. It's easy to navigate and there is free wifi so I'd definitely connect through here given the option!