I love this place. It is one of my top 10 favorite places to eat in DC.
My dad and my sister like it too and when they come to visit we go there. About a year and a half ago my dad sent me a picture at like 7am on a Sunday of him, his wife and my brother eating at Vapiano. This freaked me out because the only Vapiano I know is in DC and my dad lives in the Middle East. It turned out that my dad had not secretly flown to DC to eat at Vapiano, instead Vapiano had opened a location in Doha, where they live. My dad had been really excited to try it out and then hated it because it was quiet and empty. What he loves most about Vapiano here is that it is always bustling with people. I love it too.
(The Vapiano in Doha has since closed.)