I've actually gone the in-ceiling speaker route in my own home studio, so I can share some personal insights. First off, they definitely help with space-saving and can provide a cleaner aesthetic, which was a huge plus for me. However, I did encounter a few considerations, particularly with sound isolation.
One thing I noticed is that the acoustics can vary significantly compared to traditional bookshelf speakers. Since ceiling speakers rely on the ceiling space as their enclosure, you might find the bass less pronounced unless you integrate a subwoofer into your setup. It's also key to consider the ceiling's construction materials; drywall or plaster might resonate differently, affecting sound clarity.
During installation, one tip I found useful was to plan the speaker layout carefully. Installing them too close to walls or corners can affect the soundstage. I used a stud finder and checked for any ductwork or electrical hazards before cutting into the ceiling.
In terms of brands, I've had a positive experience with Klipsch and Polk Audio for their reliable performance. Both offer good options, but I'd suggest listening to a few models in person if possible to see what suits your ears best.
Have you thought about how you will handle any necessary sound absorption treatment in your studio to maintain balance? That was something I needed to address after installation to ensure accuracy in my mixes. If you need more details or have further questions, feel free to ask!