I use them as satellites with Kanta 2s. The problem is their subwoofer - Focal Sub Air (and I have 2 of them ) can't go lower than the Kantas (sure not below Sopras), so LFE calibration in a surround set up gets quite tricky. But otherwise, they can be installed anywhere in the room including the ceiling with just 6 tiny screws and be directed straight to the LP.
They wouldn't be an audiophile's first choice but I had non-flax versions of the Domes before these. Why do I keep buying them? Because when you don't have a dedicated home theatre and you want some proper Atmos system with at least 7.1.4 configuration along with your Hifi setup, you need to downsize. These satellites disappear in the room. And location precision is almost as important as frequency response so freedom to attach them whereever you want is a "nice to have". And although the sound is mediocre at best, for the size, almost nothing will sound better. The magnet inside is extremely heavy. Amir's review is top notch. I believe some of that HF loudness he mentions is designed on purpose (Focal's so called "bright" sound). They have that even in their high end speakers. I guess it's to impress testers in demo rooms ignoring the ear fatigue they will cause in the long run. At the end of the day, Focal needs to sell in very large numbers.