I'm a Doctor working in the UK. I did as much research as I could to find a company that was reputable and got results because I wasn't overly comfortable getting an operation in Turkey. It was incredibly difficult finding reviews I thought trustworthy.
Bottom Line up Front: I highly recommend Get Hair and Dr Ilker Apaydin. I paid ~£3.5k. 6 Months post op, my results are already really good and I have no regrets.
Organisation: Highly efficient through UK based agents, book in for a consultation in the London Offices if you get a chance. Payments made with credit card, no foreign transfer fees etc.
Accommodation: The hotel is walking distance from the private Hospital, I wasn't initially happy with my room (as it was a smoking room) so i was transferred to a non smoking room. I was very pleased with the hotel, and the food was amazing. Included in Price.
Transfers: Perfectly adequate, and included in price.
Cost: ~3.5k +/- flights. It is roughly a 1/3 of what i would have paid in the UK. Doctors don't get paid as much as you think, so I went with Get Hair. You can probably find cheaper options in Turkey, but be very careful if you decide to take this risk - you can probably only have 2, maybe 3 transplants before your donor hair area is exhausted. It is far cheaper to have the work done correctly, once.
Operation: Miss Cansu was the local rep guiding me through the day - she was excellent. It's a long and often uncomfortable day, take an iPod with audio books or music. Largely pain free, when it started to hurt they topped up the local anaesthetic. You will be offered Diazepam in the morning before the Op as an anxiolytic. Medically speaking, there are some differences to UK health care but their practice was safe, the hospital is clean, no issues. As an additional layer of safety, if there are any medications you can't take / allergies, ensure you know what they are.
Aftercare: Excellent. I had the phone number for Dr Apaydin to ask questions of via whatsapp in the UK. The MOST critical stage is the first 48 hours, think about taking a neck pillow that will enable you to sleep lying on your back. Try to sleep with your head a little elevated because it will help with the swelling. I slept elevated for ~10 days, before I went back to sleeping on my side. The grafts are relatively robust after a couple of days, you will accidentally hit your head / knock your transplant areas at some point, don't worry too much about this. My only criticism and Get Hair, take note, they offer a bucket hat which you can wear to protect the head for recovery period. I would not recommend wearing any hat for at least the first week, after this time a Trucker (5 panel) baseball cap worn loosely so it doesn't touch your graft/transplant areas is far more socially acceptable and costs about £3 from Amazon. The bucket hat was ridiculous and was never worn.
Results: Be prepared that you will look awful for a couple of weeks post op, 2 weeks is the minimum time off work i recommend, 4 weeks would be better if you can swing it. The first 6 weeks are toughest, anxiety about whether it's going to work will be apparent, this will pass. By 6 weeks the last of the redness on my temples had gone. By 3 months, my hair had regrown to my pre-op length (~30mm) and the new hair were just coming through. My hair got better and better by a weekly basis until the 6 month point (where I am now). My results are already great, but will continue to get better / thicker until the final result at ~12 months. I look 10 years younger and I can't tell you how refreshing it feels that I no longer worry about a gust of wind, or a bit of water moving my strategically placed hair. I've put photos at 6 weeks, 3 months, 6 months.
Summary: I highly recommend Get Hair and Dr Apayadin, hopefully this review will help you in making a decision as it's so hard finding a review that i trusted.