Well I tried it, and for me it's not sharp enough. I only tried it in P3d. It was great on the ground but once in the air it turned into mush. Another problem I had was if I turned to quickly, or any movement that was too quick it would make me dizzy. I don't think that happens to everyone, but for me it did, and it made me nauseous.
I feel when the technology reaches 4K and the hardware can drive it at a high frame rate, this will be the flights enthusiast dream come true.
I return the Oculus Rift. I am watching the technology evolves, and when it reaches a high resolution and the hardware can drive it at that resolution I will be the first one to pick it up, because it is truly an immersive experience.