I'd recommaned the Red Dragon on Rt. 8, in the shopping mall across from the Mellon bank. It is some of the best Vietnamese I've had (especially notable spring rolls, hot & sour soup, and anything in spicy bean sauce). I understand the chef used to work for Kim's in Garfield. Last I recall, their spice scale was very strong, such that a "4" sent folks reeling for ice water, but things may have changed in the past couple years.
Pittsburgh, PA