I come here often and they haven't given me a reason not to come back. The space is nice and clean and the service is pretty good. Staff members are attentive and the food is prepared and served in a reasonable time.
As far as the food, I think it's in the top tier of good Vietnamese restaurants in the valley. I almost don't expect food to be as good for a place that's so clean. My go-to appetizer is the crispy egg rolls. Their pho is great, with regular and large size options. I order it with rare steak, meatballs and tripe and they never have an issue with a custom order. Figured it's worth noting since other restaurants don't take orders that aren't exactly how it is on their menus. I also like their special pork chop rice plate. Tasty marinade on the pork chop with some shredded pork and a fried egg on top, which I'm a sucker for.
They also sell boba (tapioca) drinks here. My only experience with that wasn't the greatest. Tasted good, but came with larger ice pieces than I'm used to. I was chewing on ice with every sip. I'm just used to more of a slushee consistency when it comes to these drinks.
Overall, always a good experience at Pho AV. I've taken a few coworkers here and they like it too. I'll keep recommending this place those seeking good Vietnamese food in the area.