I really enjoyed the atmosphere and friendlyness of the owners at this place during our stay in Lübeck. The food was very tasty, all vegan which is always good. I was really hungry so I got a small starter soup and the dish of the day along with a salad and a little dessert. We wanted some tap water and then were suggested revitalised water at 1€ per glass instead. We took two of those but it seems like we got charged five glasses instead as my parter kept filling up his glass not knowing the revitalised tap water cost extra - in this case essBAR shouldn't have the filled jars standing around reachable for everyone to get a refill.
We ended up paying 24,60euro for two people which I consider a little high priced for a place with a canteen-like feel. Still, apart from the water charge issue, I recommend this place as it is the only vegan place in Lübeck and since it offers healthy and tasty food.
It doesn't provide much space, though, and has lots of poducts for sale standing around (it's also a shop) so if you're coming with a child consider yourself being constantly running after her making sure nothing breaks.
Cons: no toilet, charge for water