There is an typing error!? It is "it´s" instead of "is". But I think, we can omit the word. My answer was: "This lunch is not good, but cheap." Duo says, that it is wrong, but it should also be correct!? Can somebody help? :)

bary mleczne są niesamowite!

Seriously though, there's amazing food from restaurants, and then there's the food Grandma makes. Milk bars are way closer to the latter than the former.

Ok, bar mleczny ma pyszne jedzenie. Ale, lubię ten żart :)

Because that's rather "choć" or "chociaż". And frankly it would seem strange to me, why would you expect a cheap lunch to be good?