Best solutions for hidden mini split installation?

I'm building a large house in a tropical clime. We will have mini splits in most or all rooms. I'd like the installations to be as hidden as possible. I've eyed the Mitsubishi ceiling cassettes as a possibility. Ductless concealed would also work. The architect team will have great ideas, but I wanted to ask you great people what you'd suggest. Steel beam, concrete, glass, modern style of construction. Central HVAC is not a thing. What would y'all suggest?