Had twice lunch over a weekend when we were in Paris.
Saw that they had glutenfree crepes, and so my son wanted to go there. And the crepes were very good.
And the staff is super friendly.
The only downside I would say is, that on a hot day it is impossible to sit inside, as it gets very hot. And there are not many tables on the sidewalk, so you might be out of luck.
But when in paris, we will for sure go again.