Not sure what happened to the quality.
I went back over the summer ( a while back) and I wanted to comment on the lackluster quality. I still love the kimchi fries and banh mis, but the kimchi fries portion I got was so tiny, I could finish it myself.
That being said, I still love the place, it just seems the portion shrunk a lot. The fad has seemed to die down, but they still seem to be fairly busy.