A neighborhood favorite! Then again, I love Pho.
When you come in, I suggest you get a seat with a good view of all the other seats. Watching people eat noodles is incredibly fun! Get a drink, any drink will do. They actually have a "Surprise Me" option on their bar menu. I think the bartenders are psychic and showing off, because they bring you what you really want deep down inside.
Unless you're an expert on Vietnamese food, it takes a few tries to figure out what is "your dish". The first couple of times I came here, I was always satisfied with my food - but I would see what someone else was ordering and transform into a bulimic goblin/wizard wanting to change my order after the fact. After a strict rehab - I can now happily say, I even know what hot sauce mixture I want in my pho. TAKE THAT GOLEM!!!
Now keep in mind, this is historic Phoenix we're talking about here. Most of these restaurants are old houses that have been renovated to be the wonderful restaurants they are. It can get cramped/cozy/claustrophobic/small/youhavetogetthepointbynow. That's part of the appeal.
I'll end saying this. If you want comparable Pho, go to LA or Vietnam.