I have not. Drywall crew finished today. I won't have any time off until next week to try them out, and right now it's a big echo chamber with 4 walks and concrete floor.

I'm confident they will work as surrounds/tops supported by a subwoofer. I think you would not ideally use these as front L and R main speakers. I get the impression they aren't designed for that anyways.

I went with on wall M3s for surrounds and these for overheads. I couldn't put them in the walls where I wanted for surrounds due to structural supports that couldn't be easily moved.

Once I get the room a little more finished I'll compare the ceilings to the on walls.