Time ago I read a post by Mr. Jay Mitchell who stated that with his IRs and his (real) cabs (the CLRs had not been designed at the time) his Axe sounded exactly like his amp... in the room. He explained that it was because of his mic'ing technique and knowledge about direct and reflexed (?) waves.
.
At that time I tried his far-field IR's with the Ultra with interest but I didn't like the sound. It sounded way too muffeled for my taste which doesn't mean they are not accurate but only states that I want to hear different things in my cab sound.
I wish I had had the opportunity to listen to more far- field IR's then but Jay's were the only ones available.