A few weeks ago, I had the pleasure of dining with Charlie Walker (41-D, 51-D, 61-B) and Rick Searfoss (STS-58, 76, 90) in San Diego, CA. Rick Searfoss sat directly to my right.
The discussion initially centered on my failed attempt of becoming a USAF pilot in 1988. I was medically bounced out after my flight physical due to a skin condition called "eczema". All pilot/astronaut dreams were shattered at that point. Charlie started talking about Flight Simulators and I ran with it.
I indicated that, yes, I fly ANY simulator on the PC but one in particular has my interest now. I then detailed SSM2007 for both Charlie and Rick. You should have seen the look on their faces. They appeared ASTOUNDED that a program like this exists.
Rick Searfoss flew on both Atlantis and Columbia. I asked him if there was any flight characteristic differences between the two since Columbia is heavier. He indicated that Columbia has a CG closer to the nose versus Atlantis because of the weight.
Rick indicated that, "Columbia requires a constant back pressure on the stick during approach and landing. Hint hint SSM2007 team. He also indicated they can set up the Shuttle Training Aircraft (STA) with the characteristics of Columbia and Atlantis separately. He said comparing the two, "Atlantis was EASY!".
He also indicated that the handling was the same for both Shuttles while on orbit due to the computer control. I then asked him about ITEM 24, 25, and 26 and he replied, "You know that? You're giving me nightmares because it's bringing back memories of training."
All in all, I think both astronauts were amazed that a $50 program could replicate the "real deal".