Even if the RAMAir did nothing else, I surely like the extra room under the tank and seat.
I've seen a number of posts about the sound it makes, and I might be hard of hearing. Between my ear plugs and loud exhaust note, I cannot hear any difference in the intake between stock and RAMAir.
My mileage was down significantly when I installed the "de-restricted" map on my bike. It was fun initially. I do like to tour -- why I purchased a Touring -- so I requested a map that was leaner below 3,000 RPM. At just below 3K I'm cruising at around 75 mph, which is all I need around here and most places east of the Mississippi.