We've had several very good meals at Minh's in Arlington. OPH, TS, RK have all been there as well and liked it.
It's right on Wilson Blvd. JD loves the summer rolls and anything with ginger is quite good.
For Pho (Vietnamese Noodle Soup), it's best to stick with the Pho-only places like Pho 75 (also on Wilson), but for a good old sit down place with nice service and some delicious entrees, Minh's is the moist consistent and flavorful.
If you are visiting Capitol Hill, we've found some healthy and delicious food at Pacific Cafe (near 11th and Pennsylvania SE). Shrimp over vermicelli and ginger chicken are stand outs. -j&t