I've eaten here six times in the past year and can say that the quality of food and service has been consistent each time. Standard fare as far as Pho is concerned. I have not eaten here for lunch but dinner portions have been enough to take home for a second meal.
The spicy beef vermicelli is very good if you aren't in the mood for Pho. You can choose from 1-5 for the level of spice in the dish. If you like it hot then 4 is very good but I don't think a 5 would cause much trouble if you're feeling risky. Also, the garden spring rolls are worth getting if only for the peanut dipping sauce that accompanies them.
Altogether a good place with a nice atmosphere and attentive service.
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Update Feb '13:
Five years later and I'm still a regular. The Combination Bun Tom has quickly become a summer favorite and the pho supplies me with a warm soup fix on "cold" (Phoenix cold) days. I'll even stop by and purchase a big container of pho broth to sip on if I'm feeling under the weather. I'm happy have this place in the area since good asian food is generally reserved for Mesa and I'm not alway in the mood for that trek!