Although a bit dingy on the inside, Antep Kabab still delivers a respectable enough spicy chicken sandwich, even though it's not really "spicy" at all. All of the spicy sauce tended to conglomerate toward the bottom, so it was quite uneven in terms of what to expect. The bread tasted very nice though and it was cool to see it being baked right in front of me! I just wish that the sandwich overall had a bit more to it.
From multiple Turkish friends, I wouldn't say this is the most authentic Turkish place as normally the kebabs should be nicer/higher quality? But I could definitely see this being a nice sort of drunk food if you're partying in the Concordia area.