For me this is the most amazing and sophisticated plane there is for FSX. When comparing it to the NGX it -of course- feels much bigger but most of all the sound and feeling are much better. Driving this bird over the taxiway or runway, with the Buttkicker, makes it much more realistic then the NGX. I hear and feel every bump. For me it flies smoother and I get better frame rates at busy airports on Vatsim. The way of flying is comparable to the NGX but it feels more solid. Compared to other long haul birds in my fleet (I don't have the MD-11) it is a huge step forward. Go on PMDG!