Maybe then it's really the second/third language barrier caused the arguement bewteen us at least then. The red portion is what I always said, ATC (excluding the mains in arguement/discussion for a bit first), while is good and not say really not even flat on axis like recent B&W and some PMC with weird measurements do, isn't as good/ SOTA in design in the free standing department. still good if cost no object and with some treatment/in the MLP well setup, but not that competitive in terms of best.You cannot just swap a soffit mounted speaker for another, the soffit is built to exact dimensions.
I have travelled to various studios to hear PMC and ATC installs. Certainly not all were good. Genelec mains, augspurger and 420 can be found locally. 420 can be soffit mounted with a Kit from neumann to remove the Amp pack yes. I also tried 8351, Dutch, Meyer Amie, Pulsar and Focal Trio. All in a very good room, but even the best rooms are not free of boundary properties that will affect freestanding speaker’s performance. These properties can be largely removed in a good soffit mount solution.
The ATC mids and HF aligned best with my preferences, and measured great in good rooms and not very good in lesser rooms. So no doubt; as a freestanding speaker alot of the other brands had better performance (especially in the lowmids and lows). But ultimately did not compete with a good soffit mounted ATC system. These are all just my personal experiences, so take that for what it is
As said before, I don’t view any of the speakers as perfect, I see it as different compromises for the best fit, for a certain room design philosophy. There are lots of great speakers, none of them will be the perfect match for all rooms and use cases.
For blue part, yea, your personal preference is what matters to your own choice afterall, it's your working environment, but to me, who don't work or own a studio and even if got rich won't want one, purely discussing technically, the ATC don't seem to be the best brand of choice in all the published measurements, and for visiting the various installs I believe the room variationo dictates what you hear, and maybe ending up be the choice, also vice versa, I remember early in the thread your room shows some HF roll off due to supposed over damping in the early room building stage, could be one of the reasons why you find your ATC solution less fatigue than the Genelec setup you visited, maybe in final version of your room it didn't roll off post 10khz or maybe it's still there, with reduced extent or the same. I do think that could explain the HF fatigue part in long term, ppl do get annoyed by really HF sound especially noise if it's in the mix, which is why NOS dacs still have a great market as ppl feel that the NOS HF roll off sounds more polite and not harsh. But those are personal preference, and not really what the objective debate/discussion of what is translating the recorded materials more faithfully, which, IMHO, the one reveals the harsh fatigue flaws factually should be preferred as that makes one notice and can target the actual flaw which is there.