Not many condo's here. I only know of one. (Replay)
Definitely come and stay for a while and have a good look around.
Do not only look at Chewang, Lamai and Fisherman's village. They are the expensive areas with lots of tourists.
Flights can be expensive in high season, but if you live here, you can apply for a Resident's card from Bangkok Airways.
Bolt and InDrive are here but Grab is more popular.