A very good TA tip!
We had lunch there the other day and it was just perfect!
We were missing the "western cuisine" a bit so we got a salad and a falafel dish with some bamboo shoot chips ( make sure you get them! ) as a side dish.
Everything was fresh, excellent sized portions, served in a very vintage-bohemienne-Berlin style enviroment!
Make sure you go there at least once while in Hanoi!