We made a stop here on our recent visit to Phuket. Entry fee is 500bht. It is an expectation to leave shoes in the safe lockers, manned by staff.
Prepare to have a laugh and just go with the flow. There is a lot of posing for pictures expected. Each picture has examples on the side of how to pose. If you follow the examples, you will get fantastic pictures. There are many stations so the minimum amount of time that can be spent here is 45 minutes to 1hour 30 minutes, depending on how many people are on your group and how many pictures you take. It is quite easy to get carried away. We thoroughly loved the experience.