Livingroom player here, AF2 since 2009, AF3 since 2020, I've been doing my practicing, playing AND recording (VERY important for me) with FAS since 2009 and I am never going back.
Now, was the AF2 an overkill for me? Sure, since I was using only the 10-15% of its capabilities. Is the AF3 an overkill for me? Darn sure, for the same reasons. But the result is just the same, for what my ears and hands demand they were/are the perfect solution (I live in an apartment, I used to be a a tube head, I had a bunch of tube amps anything from 5 and 20W all the way to 100W beasts and a buttload of effects).
Still, I am on the waitlist for an FM9 and once I get it I will sell the AF3. Not only the FM9 will be less of an overkill (I'll still won't be able to use more than 10-15% of its capabilities) but it will solve the portability (since I want to be able to take it with me in a small bag) and switching issue (nowadays, I prefer an all in one solution, I also had an MFC with my AF2 so I know hot it goes). If the FM9 was available back in 2020 I would opt for that as it has all the features of the AF3's I am interested in and more than enough CPU power for my needs.
But hey, that's just me...