Thanks for your take on them.
I also compared the 3fs to the Prestige (95f in my case).
My experience was similar to yours, the Personas engaged me on a different level with beautiful clarity, midrange purity and an immersive soundstage. The 3f bass quality was better than the 95f, (didn’t go quite as low, but didn’t care!) and had less apparent room node excitation.
A step up in every way- and I am a fan of the Prestige line (with many hours listening to them) and view them as great values. The 3fs would also appear to be great values, just at a different strata.