Home Theater setup: In-Ceiling Speakers?

[DJJasonp]

Wanted to see if anyone has ever done a all-in-ceiling speakers for a 5.1 or 7.1 (or atmos combos) - and if they are satisfied with the setup/sound?

I've had 7.1 setup previously with Definitive Tech tower speakers (subs built-in) and Martin Logan center channel (with in-ceiling for all surrounds).

Moving to a new house soon, and wondering if I should go all in-ceiling or not.

I see there are some that have backer-boxes and aiming tweeters.....but not sure if I'd be satisfied with the sound versus my towers, etc.

Any insight on this would be greatly appreciated!