A good duty-free shopping center. Jewelry stores are popular. Cartier and Bvlgari. The staff is English-speaking, but in case of acute misunderstanding, there is also a Russian-speaking young man. We bought everything, we were given gifts (care products, flowers), we received our purchases without problems and queues in the departure area of Phuket airport. It is very convenient and without complaints.
An interesting solution is to bring duty-free to the city, and receive the purchased goods after they have passed passport control, but there are nuances that everyone understands themselves and it is not worth describing, in general, 50/50, if the thing is expensive, it is worth it, if not, then you know it is not worth it, so if there is no money don't drive, no brands, no exclusivity. A full-day trip to King Power is not worth it, it's better to take a taxi, spend an hour from anywhere, go on your own, and not on a free transfer, which takes you to all the interesting and not interesting, necessary and not necessary objects.
There is a large duty-free shopping center, there are many shops, but they are empty, world brands are represented, you pay for something, and you pick it up at the airport on departure. There are no problems with this, everything is debugged and clearly working. There are a lot of employees at the airport, there are no queues and you take your purchases in 5 minutes.