Now if you can capture a cabinet in the far field - this will yield a close approximation to the "in the room" sound. However acquiring a far field IR is not as easy as a "close mic/near field" IR. For one you need ample space to avoid reflections that pollute the response and a proper measurement technique.
IMHO a lot of the concerns & frustrations expressed with FRFR, and especially the comments that say "FRFR doesn't have that 'in the room' sound", come down to what AlbertA talks about.
If you are used to hearing a traditional guitar speaker "in the room" you are actually hearing the guitar speaker from six feet away along with all of the colouration that the room introduces (via reflections). If you hear the Axe-FX through a good FRFR solution using a typical IR, you are hearing what the speaker sounds like from an inch away with no room colouration. The colouration of the mic and preamp, along with the EQ in your patch, are typically aimed at closing that gap.
Good far field IR's are rare, and there are only a few in the Axe-FX 2. Jay Mitchell was talking about releasing some at one point, but I've not heard anything about that lately.
There is a way to come somewhere in between. You can blend close mic'd IR's with IR's made using room mics. The Redwirez speaker IR's include a room mic and the new offering from Ownhammer contains three room IR's for each speaker. I've been experimenting with those lately and I really like the "body" that a room IR blended in at -6dB adds. It's easy to mix a close mic'd IR and a room IR using a stereo cab in the AxeFX 2.
I also like the tones I can create with close mic'd IR's, particularly using "mix IR's". They may sound different than an amp in the room, but that's OK. As long as it sounds good, and I can be expressive with it, that's all that matters to me. Near field, far field and room IR's present opportunities to create a rich set of tones that were difficult or impossible to achieve live with only a tube amp in the room.
My live FRFR soluiton is in-ears, btw, and I either use those or studio monitor's in my home studio. I'll probably pick up a CLR in case I have to play a venue where in-ears are not an option.
Terry.