We were in the evening (on Mon), the entrance ticket cost 300 liras (you buy it on the 1st floor, the concert itself is on the second), the price tag for drinks is sane, beer averages 150 ... 180 liras. The acoustics are good, the toilet is relatively clean. Concerts are held every day. The staff speaks English, if anything
I came to listen to jazz. I met a man with a beard. Buy - he says - an entrance ticket. Sell it, I say. Go there, there's a man with tickets sitting there - he answers. I come - there is no one. The bearded man makes a surprised face, cuts 2 circles, finds no one. Come back later, he says. Wait, this is your gap in the organization, let me go in and pay there - I answer. No, get out of here, we're fine without you, you'll come back later when it's convenient for us to sell you a ticket. It was the final chord of my jazz in this club. I found another one with a friendlier staff. This was not a problem in Istanbul.