Pho Mesa is hit-or-miss on pho quality. I've been there some times and it's crazy good, other times it's just bland. The rice dishes are not good in general. The charbroiled anything has good flavor, but the side veggies are lacking and poor quality.
Today I tried the Mi Quang, which is a pork, curry, lemongrass and coconut infused broth with wide rice noodles, quail eggs and pork slices. Don't be afraid of the banana leaf shavings--throw those in, too!
So, only eat the Pho and the Mi soups. I cross my fingers for you when you go!