Alright, I've just returned from the clinic. The procedure took about 8 hours and I cannot think of anything to complain about. Everything went smoothly and comfortably.
Dr. Maral turned out to be very friendly and knowledgeable, we first had a consultation, then he draw the hairline and was checking in occasionally during the procedure, overlooking everything. There was also another patient at the clinic in another room.
Most importantly, the technicians knew their job exceptionally well, they were professional and attentive. Because my donor area turned out to be very dense, they managed to extract 4800 (!) grafts and they were inserting them at incredible speeds (I counted, at moments they were inserting one every 2 seconds or so, other times around 6-10 per minute), always two of them at the time. I am NW7 and this is way beyond my wildest expectations.
The only uncomfortable part were the first few injections, but as soon as they worked I didn't feel the others. Everything else was so painless that I literally caught myself napping a few times. I especially liked that the TV channel that was on was playing Turkish pop hits while the technicians joyfully chattered and occasionally sang along. (I think I was also lucky with the time of the year, the weather is beautiful and the city is festive because it's Ramadan, so I am really enjoying myself.)
Please let me know if there's anything else you'd like to know, I'll return with updates soon.