Paradigm Persona B vs 3F vs other competitors - any experience?

"This makes no sense because a stand mounted speaker has roughly the same footprint as a floor standing speaker. Why would anyone object to one over the other?"

Overall appearance? Floorstanders are harder to knock over? (that is why I switched)

@ benzman:  Thank you, that sounds very promising. I guess since Hi/Mid chassis in B and the larger F’s are the same, the revealing hi frequency part and their need for cautious cable matching is the same. Will definitely check out your cables. Interestingly the Lindemann Source also uses an AKM chipset (AK4493), the Cary DMS700 I just checked even uses the newer AK4497. About the 3F - unfortunately no chance - she can”r connect to large Hi-Fi gear standing around in the living room 😆. 
I expect connecting and matching the sub will become an interesting challenge, I will try out the sub”s ARC software to achieve better results. The B+sub combo might lead to even better results compared to 3F if properly matched. The sub is supposed to have a lot of bass energy. 
Another task will be to decide if and which tube preamp will lead to better overall sound without too harsh sound on less than ideal recordings. This is also important for me. 
Best would probably be to find a fully loaded tube-dac-preamp-dsp, that does everything right  
- rich forgiving tube sound
- quit preamp function
- no degrading volume control 
- musical and transparent dac
- up to date streamer 
- fully balanced design and connection
- room correction incl subwoofer matching

Any idea if there is such a monster 😄?

... and Cary DSM550 uses even the same AK4493 chip 👍🏻

The source that convinced me the personas were the real deal was the Pathos logos mk2. I’d heard them with the anthem str integrated and separates but the pathos just warmed up the mids the way I like em. 

Persona = Bright very Revealing = Bright, not ear bleed as some have some have said but absolutely Bright.
Course I'm running the STR Int and for the money love it and does everything I want as well as ARC.  ARC def helps integrate the bass into the system that even some meticulous time with a sound meter and test time can't achieve.  Hard to beat a PC and Sound being processed without much ado.
I do agree there is hardly a difference between floor standers and book shelves on a stand, lost floor space is still lost, course the 9H's could be a different subject.
I'm still playing with my 3Fs, some room treatment and moving the speakers, in my case a very slight toe in has helped tame the beast, but coming off a silk domed tweeter speaker these metal tweeters and midrange are truly more in your face.
In my case my better and more patient other half loves the look of these guys, perhaps their saving salvation.  Otherwise I might be looking at SF's  taking their place.
But alas it's a hobby and like all hobbies requires some effort to appreciate what satisfaction comes from said hobby.