There's no public transport in Göreme so the shared shuttle is the cheapest option. The driver sets the pickup time according to your flight departure time, you can't choose. The airport is so small that once you arrive, the check-in process should not take long (I didn't have any luggage so I don't know).

At the exit of Sabiha G airport it was quite complicated to locate them because they are located on the side and there are no signs indicating our name as mentioned at the start. Suddenly the taxis approached us, informing us that they were the only solution to go to the center of Istanbul. After having refused their proposal and telephoned the number indicated on the email (I had an out-of-charge package of €45 for 2 min call with the internet connection). There resource person came to us and told us the minibus. We were able to be taken to our hotel. The driver was very very friendly. He guided us and advised us well. We are delighted with the service. For the much simpler transfer to Kaseyri airport in Cappadocia, the resource person was present with the sign indicating our names. Next trip I will go through this site

Fantastic when I landed and the same on the way back to the airport. I was worried about flight timing on my way back as we had to pick up the rest of the group, however it is all timed perfectly. These guys do it for a living so they calculated it correctly. Comfortable minibus. Nothing bad to say. Great value for money!