At the recommendation in January of Elyhtak, we went last night to Huong Viet in the Eden Center. We agree that the food was quite good. We enjoyed the "noodle gumble soup". (I guess "gumble" is meant to be "gumbo", but there wasn't anything gumbo-y about it.) The "beef underdone with lime" was delicious. The salted shell-on fried shrimp and the caramel pork were also fine.
I even liked the "three colors pudding with pearls" that I thought I'd take the plunge and try. It's pieces of sweet, gummy "pudding" immersed in some kind of milky liquid with sweet beans and ice. I found it refreshing.
I also agree with Elyhtak that the menu might be somewhat more adventurous than the one at Four Sisters. I'm not sure how much cheaper a meal it was.
But there were several downsides that impeded our complete enjoyment of the meal. It's a small room, and the designation of a non-smoking section in it is meaningless. We had to flag down a waiter to get a ladle for the soup, to get plates to put our entrees on, and to get a refill for our water. (No complaints about the waiters' manner--they were courteous and helpful--just their attentiveness to rather obvious details.) And they don't take credit cards, which took me by surprise.