For a $12 Pho Det Biet it was seriously lacking in flavor and had only pitiful amounts of beef *pieces* in the soup. The broth lacked depth and had no umami flavor at all. The only positive thing about it was the temperature but that's it. Extremely slow service did nothing to help either.
To me they rank amongst the worst made Pho in CLT, along with the likes of VietThai noodle house and the new Pho Ngon. Waste of money if you are serious at all about how a Pho should taste.